Poster session V
1D Nickel Gratings as Solar Absorbers
N. Ahmad, S. Nunez-Sanchez, Martin Cryan
University of Bristol (United Kingdom) This paper presents measured absorptance results for Focused Ion Beam fabricated 1D nickel gratings optimised for solar spectrum. Results are shown for a grating period of ~500nm and for varying etch depths. We obtain absorptance greater than 90 percent for wavelengths 633nm to 714nm and greater than 65 percent from 450nm to 800nm. Angular and spectral is also shown using Fourier Imaging measurements.
Band Structure of Two-Dimensionally Photonic Crystal
Raul Garcia-Llamas (1), Daniel Valenzuela-Sau (2)
(1)Universidad de Sonora (Mexico), (2)Universida de Sonora (Mexico) We calculate the photonic band structure and the electromagnetic modes of a photonic crystal, a rectangular array of cylinders of elliptical cross section, for TE and TM polarizations. A full band gap for both polarizations was found, and the band structure was compared with that presented in ref. . We plan to calculate the band structure and modes considering oblique electromagnetic propagation according to the homogeneous axis of the system.
The localized surface plasmon resonance enhanced electron tunneling in gold nanoparticles array
Yusheng Zhai, Qilong Wang, Zhiyang Qi, Ji Xu, Xiaohua Li
Southeast University (China) In this paper, we use a low-cost and simple method to fabricate Au nanoparticles(NPs) arrays and then investigate its plasmons enhanced electron tunneling characteristic when illuminated by light of different wavelengths. The self-assembly and secondary growth method is used to fabricate the Au NPs arrays with controlled size and spacing on the insulate glass substrate. We find that the photo-induced current strongly dependent on the wavelength of illuminated light.
Plasmonic probes for nanoscale Raman and topography mapping.
Francesco Tantussi, Andrea Jacassi, Rajeshkumar Mupparapu, Francesco De Angelis
Istituto Italiano di Tecnologia (Italy) Nanostructured AFM cantilevers with gold nanocone plasmonic tip are promising tools for nanoscale mapping Raman signals and topography at the same time. Different from the standard TERS illumination, our approach is based on a backside illuminations with radial polarization focused on the cone base. Thanks to the appropriate polarization, Surface Plasmon Polaritons are launched from the cone base toward the nanoscale cone apex where the E field enhanced is generated.
Temperature dependence of band gap ratio and Q-factor defect mode in a semiconductor quaternary alloy hexagonal photonic-crystal hole slab
Robert Sanchez Cano (1), Nelson Porras Montenegro (2)
(1)Universidad Autonoma de Occidente (Colombia), (2)Universidad del Valle (Colombia) We present numerical predictions for the photonic TE-like band gap ratio and the quality factors of symmetric localized defect as a function of the thickness-slab and temperature by the use of plane wave expansion and the finite-difference time-domain methods. The photoniccrystal hole slab is composed of a 2D-hexagonal array of identical air holes of circular cross-section, embedded in a non-dispersive III-V semiconductor quaternary alloy slab, which has a high value of dielectric function in the near-infrared region.
Study on magneto-optic three dimensional display composed of magnetophotonic crystal
Kazuki Nakamura, H. Takagi, T. Goto, P. Lim, M. Inoue
Toyohashi University of Technology (Japan) We have developed magneto-optic three-dimensional displays (3D-MOSLMs) with submicron scaled magnetic pixels to apply wide-viewing holographic display. The 3D-MOSLMs modulated light polarization with magneto-optic (MO) effect to represent holographic 3D images. The magnetophotonic crystals (MPCs) enhance magneto-optic (MO) effect by microcavity composed of magnetic garnet as defect layer. In this paper, we focused on the magnetophotonic crystals (MPCs) for magnetic media of 3D-MOSLMs. Using the MPC increased diffraction efficiency and reduced power consumption for thermomagnetic recording.
Photonic crystal simulation of two co-existing SSH models with a topological phase difference
Momchil Minkov, Vincenzo Savona
EPFL Lausanne (Switzerland) We fine-tune photonic crystal cavities supporting two orthogonally polarized modes such that when arranged in a 1D chain, each polarization is dimerized, but a strong bond in one comes with a weak bond in the other. We demonstrate the correspondence of the system to two co-existing, off-phase SSH models, and show the expected orthogonal, zero-frequency edge modes which are robust to some particular types of disorder.
Exploitation of Fano resonance in periodic nanodome arrays for surface enhanced Raman scattering
M. Hardy (1), Ryan McCarron (1), M. D. Doherty (1), R. J. Winfield (2), P. Dawson (1)
(1)Queen's University Belfast (United Kingdom), (2)University College Cork (Ireland) We demonstrate the fabrication and analysis of a large-array SERS substrate which uses Fano resonances generated from the scatterer-Bloch mode interaction to create absorption-emission split peaks tailored to the Raman shifts for specific SERS scattering events in analyte molecules. Using standard polymer-based imprint patterning techniques which avoid the need for nanoscale roughness these substrates exhibit enhancement factors.
Arbitrary bending the unidirectional electromagnetic waves using nonreciprocal materials
Qing-Bo Li, Zhen Li, Yin Poo, Ruixin Wu
Nanjing University (China) Based on the nonreciprocal photonic crystal (PC) with simultaneously the parity (P) and time-reversal (T) symmetries broken, unidirectional waveguides with arbitrary bending have been designed by the optical transformation. The numerical results show the incident waves can pass through the waveguide without any reflections in one direction, but totally reflected in the opposite direction. We expect this design could be applied to improving the nonreciprocal performance of electromagnetic devices.
Angular selection based on Dirac points in Two-Dimensional Photonic Crystals
ChangQing Xu, Yun Lai
Soochow University (China) We demonstrate how to achieve angular selection of electromagnetic waves based on Dirac points in two dimensional photonic crystals. The transmittance for s-polarization wave can reach unity at the incident angle and frequency corresponding to the Dirac point. Away from the Dirac point, the transmittance will decrease sharply. By modifying the photonic crystal structure, the wave vector and frequency of the Dirac point can be tuned, leading to the function of tunable angular selection..
Study of transmission properties in a finite magnetized plasma photonic crystal
Chien-Jang Wu (1), Tzu-Chyang King (2), Chih-Chiang Yang (2)
(1)National Taiwan Normal University (Taiwan), (2)National Pingtung University (Taiwan) We study the transmission properties in a one-dimensional finite magnetized plasma photonic crystal of (1/2)N, where 1 is a dielectric layer, 2 is a plasma layer, and N is the number of periods. When B = 0, the structure behaves as a multichannel filter with a channel number of N-1. The positions of channels are shifted as the static magnetic field is applied. The blue-shift or red-shift depends on the orientation of the applied magnetic field.
Wave manipulation by coupled cavities in structured metallic surface
Qiang Zhang (1), Zhenzhen Liu (1), Hong Xiang (2), Dezhuan Han (2), Junjun Xiao (1)
(1)Harbin Institute of Technology (China), (2)Chongqing University (China) Spoof surface plasmon polaritons (SSPPs) were proposed and realized by structured metallic surfaces consisting of coupled cavities. We utilize the temporal coupled mode theory (TCMT) to describe their properties, including both the dispersion and transmission of the SSPPs. Based on the TCMT we can carefully design the resonance properties of the cavities to manipulate the propagation of the SSPPs, and further to achieve some interesting coherence phenomena. The predictions of the theory are verified by simulations and microwave experiments.
Use of single-negative material as a tunable defect in a dielectric photonic crystal heterostructure
Tsung-Wen Chang, Chih-Jen Cheng, Chien-Jang Wu
National Taiwan Normal University (Taiwan) The defect mode in a dielectric photonic crystal heterostructure of (1/2)N(2/1)N can be tuned by a single-negative layer D, namely, (1/2)ND(2/1)N. It is shown that, when D is a mu-negative (mu < 0)) medium, the defect frequency is red-shifted as a function of the thickness of D as well as the static permittivity. When D is epsilon-negative (eps < 0) medium, the defect frequency is blue-shifted as the thickness increases, but it is independent of the static permeability.
Magnetic tunable elastic metamaterials beam
Wei Qian (1), Xiaole Wang (2), Yun Lai (3), Benjamin B. Yellen (4)
(1)University of Michigan-Shanghai Jiao Tong University (China), (2)Shanghai Jiao Tong University (China), (3)Soochow University (China), (4)Duke University (USA) In this paper, by using 1-D beam composed of membrane-type or bulk-type elastic metamaterial with magnets, we experimentally demonstrate the possibility to tune the bandgap frequency of elastic metamaterial by external magnetic force. The experimental results is well matched with theoretical analysis and numerical simulations.Our work demonstrates a unique noncontact way to tune the properties of elastic metamaterials with a very high efficiency.
Plasmonic enhancement of Chiroptical effects: the role of surface plasmon polaritons
M. H. Alizadeh, B. M. Reinhard
Boston University (USA) The most pronounced of chiral light-matter interactions occur in the ultraviolet (UV) range of the electromagnetic spectrum, which is difficult to access with conventional localized plasmon resonance based sensors. Although Surface Plasmon Polaritons (SPPs) on noble metal films can sustain resonances in the desired spectral range, their transverse magnetic nature has been an obstacle for enhancing chiroptical effects. Here we demonstrate, both analytically and numerically, that SPPs excited by near-field sources can exhibit rich and non-trivial chiral characteristics.
Mie Scattering from a uniaxial sphere with single-negative
Youlin Geng, Zhiqun Cheng, Tao Zhou
Hangzhou Dianzi University (China) Based on the spherical vector wave functions (SVWFs) in source-free uniaxial anisotropic medium, the electromagnetic fields in a uniaxial sphere with single-negative can be obtained. Applying the continuity in boundary conditions on the surface of uniaxial anisotropic sphere with single-negative. The EM scattering by a uniaxial sphere with single-negative can be characterized. Numerical results between this paper and Mie theory are obtained, and some new numerical results of scattering by a uniaxial sphere with single-negative are illustrated.
Terahertz quantum plasmoncis of copper-graphene-copper hybrid structures
Young-Mi Bahk (1), Bong Joo Kang (2), Yong Seung Kim (3), Joon-Yeon Kim (1), Won Tae Kim (2), Tae Yun Kim (1), Jiyeah Rhie (1), Sanghoon Han (1), Cheol-Hwan Park (1), Fabian Rotermund (2), Dai-Sik Kim (1)
(1)Seoul National University (Korea), (2)Ajou University (Korea), (3)Sejong University (Korea) We observed a ninety-seven percent decrease of terahertz transmittance in five-millimeter long, angstrom-sized optical gaps of copper-graphene-copper hybrid structure when irradiated with intense terahertz pulses. The giant nonlinearity was induced by terahertz funneling through the gap, across which a large transient potential difference facilitates electron tunneling.
Experimental investigation of loss compensation of surface plasmon polaritons using quantum-well medium under electrical injection
Ting Mei (1), Y. Li (2), H. Zhang (3)
(1)Northwestern Polytechnical University (China), (2)Nanyang Technological University (Singapore), (3)South China Normal University (China) Compensation of propagation loss of Surface Plasmon Polaritons (SPP) in Au film waveguides was experimentally investigated using InGaAsP/InP multiple quantum well (MQW) gain medium under electrical injection. In the asymmetric guide, while the long-range SPP mode was inert, the short-range SPP mode propagation was elongated upon electrical injection. By engineering the guide structure with a cladding layer of amorphous silicon to make the guide symmetric, the long-range mode was made active and became more sensitive to the electrical gain.
Functional double layer scaffold fabricated in single step
Soonmo Choi (1), Deepti Singh (2), Sungsoo Han (1)
(1)Yeungnam University (Korea), (2)Yale University School of Medicine (India) Most techniques entail several stages to create multi-layered and result in layers which have uneven thickness and morphology. The aim of this study is to develop a double layer scaffold for skin tissue engineering through single step process. We have fabricated gelatin bilayer scaffold with two kinds of layer using phase separation at certain temperature and concentration. The morphology of two layers (a dense layer and macroporous layer) was assessed by scanning electron microscopy (SEM) and micro-computed tomography.
Interaction of Porous Silicon based 1D Photonic Crystals and Plasmonic Structures Fabricated by Nanosphere Lithography
Martin Franzl, Stefan Moras, Dietrich R. T. Zahn
Chemnitz University of Technology (Germany) We investigated the interaction of one-dimensional porous silicon photonic crystals and plasmonic structures. For this purpose we placed ordered metallic nanostructures on top of a one-dimensional photonic crystal structure. We adjusted the properties of both structures so that the plasmonic resonance is located in the photonic band gap. The work includes the fabrication, measurements as well as the simulation of these structures.
Near-infrared thermal emission by metal-insulator-metal cavity structure
Manohar Chirumamilla (1), Alexander S. Roberts (2), Sergey I. Bozhevolnyi (2), Kjeld Pedersen (1)
(1)Aalborg University (Denmark), (2)University of Southern Denmark (Denmark) A Metal-insulator-metal structure forming a Fabry-Perot cavity resonator is investigated for tailoring cavity resonances ranging from visible to near-infrared, and for generating thermal emission in the near-infrared.
Plasmon-mediated control of entanglement between a pair of two level atoms
Andrei Nemilentsau (1), Seyyed Ali Hassani (1), George Hanson (1), Steve Hughes (2)
(1)University of Wisconsin-Milwaukee (USA), (2)Queens University (Canada) Entanglement between two two-level atoms mediated by surface plasmons metallic nano- waveguides and graphene is studied theoretically. Dynamics of the emitters are described using a rigorous quantum master equation, where the plasmonic reservoir is accounted for through the classical electric field Green dyadic. We demonstrate that entanglement depends crucially on the geometry of metallic waveguides. Moreover, when the emitters are placed above graphene, entanglement can be controlled on-the-spot by biasing graphene with a static electric field.
Compact and tunable MNM by figure of eight resonator and its application to microwave isolator
Shouta Komatsu, Toshiro Kodera
Meisei University (Japan) Magnet-less non-reciprocal metamaterial (MNM) provides magnetic material free magnetic gyrotropy at microwave and higher frequency range, nevertheless its requirement of active unilateral components in each resonator particle is still a drawback compared to natural magnetic material. A new MNM structure by a varactor inserted figure of eight resonator is introduced, which enables reduction of active components by half and even smaller footprint to the original simple ring resonator structure in addition to frequency tunability keeping better performance.
Visible-frequency hyperbolic metasurface
Robert C. Devlin (1), Alexander A. High (1), Alan Dibos (1), Mark Polking (1), Dominik S. Wild (1), Janos Perczel (2), Nathalie P. de Leon (1), Mikhail D. Lukin (1), Hongkun Park (1)
(1)Harvard University (USA), (2)MIT (USA) We report the first experimental realization of a hyperbolic metasurface. The HMS exhibits broadband negative refraction and diffraction-free propagation of surface plasmon polaritons, while displaying 100x improvement over bulk hyperbolic metamaterials in terms of losses. Moreover, we observe a strong spin-orbit coupling where the direction of the propagating SPPs depends on both the helicity of light. Thus, the HMS enables polarization and wavelength-dependent routing of SPPs.
Reconfigurable Antenna using Capacitive Tuning Metamaterial of Artificial Magnetic Conductor
R. Dewan, M. K. A. Rahim, M. R. Hamid, H. A. Majid, M. F. M. Yusoff, M. E. Jalil
Universiti Teknologi Malaysia (Malaysia) A metamaterial of dual band Artificial Magnetic Conductor (AMC) with capacitive tuning of reflection phase at lower band frequency is proposed. The AMC operate at fixed upper band frequency at 5.8 GHz while the lower band reconfigurable frequency from 2.43 GHz up to 3.46 GHz.The reconfigurable frequencies are 2.43 GHz, 2.48 GHz, 2.67 GHz, 3.10 GHz and 3.46 GHz. The effects of AMC capacitive tuning to antenna performance is studied in terms of frequency reconfigurability, gain, and radiation patterns.
Textile Artificial Magnetic Conductor Jacket for Transmission Enhancement between Antennas under Bending and Wetness Measurements
Kamilia Kamardin (1), Mohamad Kamal A. Rahim (1), Peter S. Hall (2), Noor A. Samsuri (1)
(1)Universiti Teknologi Malaysia (Malaysia), (2)University of Birmingham (Malaysia) Textile Artificial Magnetic Conductor (AMC) sheet for transmission enhancement between antennas is proposed. Transmission characteristics between antennas with different orientations and placements are studied. Significant transmission enhancement is observed for all tested positions. Bending and wetness measurements are also conducted. Bending does not give significant effect to the performance, while wetness yields severe performance distortion. However, the original performance is retrieved once the antennas and AMC dried.
Whispering Gallery Modes Sensors Using Spherical Slot Channel Configurations
M. Alzahrani, R. Gauthier
Carleton University (Canada) A theoretical study of whispering gallery mode of a slot channel running the equator of the sphere for sensing application is presented. The calculations are accomplished using numerical technique based on the spherical basis functions (BLF technique). The existence of intense electric field within the channel enhances the sensing of the external ambient medium.
Modification of PV behavior using dissipative MTM
H. J. El-Khozondar, Dena Alamassi, Mohammed Shabat
Islamic University of Gaza (Palestine) In this work, double layer photovoltaic cell (PV) is introduced in which the materials for the two layer are different. They are antireflection coating (ARC) layer covered by metamaterial (MTM) bounded by glass substrate and covered by air. The reflectance of the solar cell is studied. The effect of the MTM parameters on reflectance is studied. Results showed that the reflectance can be controlled by changing the reflectance index of MTM.
Experimental demonstration of reduced light absorption by intracavity metallic layers in Tamm plasmon-based microcavity
M. A. Kaliteevski (1), A. A. Lazarenko (1), N. D. Il'inskaya (2), Yu. M. Zadiranov (2), M. E. Sasin (2), D. Zaitsev (2), V. A. Mazlin (1), A. R. Gubaydullin (1), P. N. Brunkov (2), S. I. Pavlov (2), A. Yu. Egorov (1)
(1)St. Petersburg Academic University (Russia), (2)Russian Academy of Sciences (Russia) We demonstrate experimentally a microcavity based on SiO2/TiO2 with two gold layers directly attached to the central base of the microcavity. The design of optical modes based on the peculiarities of Tamm plasmons provides reduced absorption due to the fixing of the node of the electric field of optical mode to metallic layers. Experimentally measured reflection and transmission spectra exhibits three features, corresponding to three hybrid modes of the microcavity.
Optical Broadband High Pass Transmission Property of Thin Film Hyperbolic Metamaterial
Ying Tang (1), Xu Man (2), Aurele Adam (1), Paul Urbach (1)
(1)Delft University of Technology (Netherlands), (2)The Netherlands Organization for Applied Scientific Research (Netherlands) Here we report the modeling, fabrication and measurement of a type II Hyperbolic Metamaterial (HMM) consisting of 10 pairs Ag/Al2O3 subwavelength layers to demonstrate the high pass filter property of type II HMM. The HMM is deposited on the hypotenuse side of a TiO2 prism and covered with a fluorescent dye doped PMMA layer. The excitation of fluorescent dye is observed only with large incident angle throughout the optical frequency and infrared, which is in accordance with theoretical calculation.
Control of the Optical Polarizability of Plasmonic Nanorod near Metallic Reflecting Surfaces
Xingxing Chen (1), Yuanqing Yang (1), Yu-Hui Chen (2), Min Qiu (1), Richard J. Blaikie (2), Boyang Ding (2)
(1)Zhejiang University (China), (2)University of Otago (New Zealand) The polarized optical properties of short gold nanorods (length less than 100nm) nanoscopically coupled to a metallic surface has been examined using dark-field microscopy. Specifically, the polarizability of scattered light from nanorods shows significant spectral dependence and can be modified as the distance between nanorods and metallic surfaces varies. This is because the scattered light arises from the hybridized excitation of differently oriented surface plasmon resonances, whose contributions to global scattering are highly dependent on the nanorod-surface distance.
Infrared Frequency Selective Surface with Silver Nanoparticles
Taehwan Kim (1), Jae Baek Han (2), Hwanseong Lee (1), Beom Seok Kim (1), Hyoung Hee Cho (1)
(1)Yonsei University (Korea), (2)Republic of Korea Air Force (Korea) Micro and nano-structured FSS with silver nanoparticles works as double FSS in IR region. Because most of incident light is absorbed or scattered by nanowire forest and silver nanoparticles, silver particles embedded nanowire cannot play the role as IR FSS by itself. With micro structured island pattern, silver nanoparticles embedded FSS can operate as a micro structured FSS and a plasmonic light confiner. The band stop FSS at infrared range is possible by these strategy without increase of reflectance.
Fabrication of infrared resonating structures using microlens projection lithography method
Hwanseong Lee, Taehwan Kim, Taeil Kim, Geehong Choi, Hyung Hee Cho
Yonsei University (Korea) The microlens projection lithography method could be effective to fabricating Infrared resonating structure, which have sub-one micron size patterns. To control the structure size, we fabricate microlens array using UV nanoimprint method and microlens mold master is fabricated using isotropic etching of silicon. With this method, a few hundreds of nanometer resolution element with microns pitched periodic array patterns are easily achieved.
Topologically protected one-way edge mode in networks of acoustic resonators with circulating air flow
Xu Ni, Cheng He, Xiao-Chen Sun, Ming-Hui Lu, Yan-Feng Chen
Nanjing University (China) We have realized topologically protected one-way acoustic edge states by utilizing a sonic crystal containing circulating air flow. The introduction of air flow breaks the time-reversal symmetry of the sonic crystal, and induces nontrivial topological properties of acoustic bands. The Chern numbers of the associated acoustic bands are verified to be nonzero by our tight-binding model, and the simulated field distributions demonstrate that the one-way edge states are robust to various kinds of defects on the boundaries.
Characterization of the electrodynamic response of plasmonic nano-particles
Dimitrios Ch. Tzarouchis, Pasi Yla-Oijala, Ari Sihvola, Tapio Ala-Nissila
Aalto University (Finland) Characterizing the electrodynamic response of arbitrary shaped, metallic nano-particles offers new important insights on the plasmonic design and engineering process. A robust and reliable numerical method towards that direction is the surface integral equation method (SIE). As a result, the response of several non-analytically solved metallic nano-particles is presented.
Nanocrystal based meta-materials by direct nanoimprinting
Sung-Hoon Hong, In-Kyu You
Electronics and Telecommunications Research Institute (Korea) In this study, we demonstrate the Ag nanocrystal based metamaterial using direct nanoimprinting. The Ag nanocrystal was coupled with short conducting ligand building block. The various nanocrystal based nanostructures of nano-pillar, nano-rods, nano-mesh structures were successfully fabricated.
Doping effect of silver ions on the photoconductivity of novel vanadate pentoxide based bulk material
H. Algarni, I. M. Ashraf, H. H. Hegazy, E. Yousef
King Khalid University (Saudi Arabia) The bulk glassy based on V2O5 oxide have been prepared by a melting technique. Herein the photoconductivity measurement of prepared material as a function of intensity of light and temperature and Raman of the glass was occurred. The photoconductivity value of prepared glasses largest than compared with other glasses systems reported in the literature. Increase and decay of photocurrent at different temperatures and intensities obtain that photocurrent increase monotonically to the steady state value.
Double negative meta-composites built upon ferromagnetic microwires
Faxiang Qin (1), Hua-Xin Peng (1), Yang Luo (2), Mihail Ipatov (3), Arcady Zhukov (3)
(1)Zhejiang University (China), (2)Bristol University (United Kingdom), (3)Universidad del Pais Vasco (Spain) Metacomposites have been fabricated by embedding Fe-based and hybrid Fe-based and Co-based microwires into aerospace-grade E-glass epoxy prepregs using a conventional lay-up technique for engineering composites manufacture. Double negative characteristics have been realized owing to the natural ferromagnetic resonance of Fe-based microwire and the plasmonic behaviour of the parallel wires. Field-tuneable DNG , dual-band DNG and DNG/band-stop features are successfully realized in the metacomposites containing both Co and Fe-based wires.
Plasmon Enhanced Photocurrent in Observed in Nanostructure Based Heterojunction Solar Cell
Gen Long, Levine Ching, Huizhong Xu, Mostafa Sadoqi
St. John's University (USA) In this poster, we report a first hand study of plasmon enhanced photocurrent observed in nanostructure based heterojunction solar cell. The heterojunction solar cell was fabricated using home-made narrow gap semiconductor, IV-VI group nanoparticles(PbS, PbSe), wide gap semiconductor ZnO nanowires, and gold nanoparticles, by spin-coating in ambient conditions (25C, 1atm). Different architectures of heterojunction were fabricated to study the effects on solar cell performance.
Near-and Mid-Infrared Fluorescence Enhancement in Terbium-Yttrium Polytantalate
Jarrett Vella (1), John Goldsmith (1), Nicholaos Limberopolous (2), Validmir Vasilyev (2)
(1)Air Force Research Laboratory/Wyle (USA), (2)Air Force Research Laboratory (USA) A unique study examining the fluorescence enhancement of Tb3+ doped yttrium polytantalate, Tb0.15Y0.85Ta7O19, in the 1000-5000 nm region will be described. After sputtering onto films of plasmonic gold nanoparticles, thickness dependent, infrared fluorescence enhancement factors were found to be 0.64-6-fold relative to the same thickness film without gold particles. The large Tb0.15Y0.85Ta7O19 film thickness dependence on the fluorescence enhancement factor will be described within the context of electromagnetic theory.