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Optical Materials Express

Archives Papers: 1,065

The Optical Society of America

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Broadband light absorber of gold-coated moth-eye film

MarikoKobayashi; YukiKatori; MasatoshiYamaguchi; MasayukiShimojo; KotaroKajikawa;

Keywords:Composite materials;Diffuse reflectance;Discrete Fourier transforms;Localized surface plasmon resonance;Refractive index;Scanning electron microscopy;

Abstracts:Moth-eye films have pillars of circular truncated cones with dimensions of one-hundred nanometers as bristles. A moth-eye film coated with ... [Opt. Mater. Express 9, 3744-3752 (2019)]

Tailoring the scintillation properties of β-Ga_2O_3 by doping with Ce and codoping with Si

MichalMakowski; WinicjuszDrozdowski; MarcinE.Witkowski; AndrzejJ.Wojtowicz; KlausIrmscher; RobertSchewski; ZbigniewGalazka;

Keywords:Electrons;Emission;Photoelectron spectra;Photomultipliers;Photon counting;Scintillation;

Abstracts:Measurements of pulse height spectra and scintillation time profiles performed on Czochralski-grown β-Ga_2O_3, β-Ga_2O_3:Ce, ... [Opt. Mater. Express 9, 3738-3743 (2019)]

Performance evaluation of an implantable sensor for deep brain imaging: an analytical investigation

RoyaNazempour; ChangboLiu; YuwenChen; ChengMa; XingSheng; XingSheng;

Keywords:Green fluorescent protein;Image processing algorithms;Image quality;Image sensors;Magnetic fields;X ray computed tomography;

Abstracts:Imaging neural activities at the cellular level in the deep brain is essential to understand the structure and functions of nervous ... [Opt. Mater. Express 9, 3729-3737 (2019)]

Asymmetric hysteresis in vanadium dioxide thin films

MarcCurrie; VirginiaD.Wheeler; BrianDowney; NeerajNepal; SyedB.Qadri; JamesA.Wollmershauser; JasonAvila; LukeNyakiti;

Keywords:Fast Fourier transforms;Optical constants;Optical measurement;Pulsed laser deposition;Thin film applications;X ray diffraction;

Abstracts:Vanadium dioxide is a material that undergoes phase changes and switches between metallic and insulating states, thereby producing dramatic ... [Opt. Mater. Express 9, 3717-3728 (2019)]

Alignment of liquid crystals generated by [2 + 2] cycloaddition in alignment layers

YangLiu; YangLiu; YangLiu; JingxinSang; JingxinSang; SiweiHe; XiaohuiGong; XiaohuiGong; HaiqinXu; HaiqinXu; JiatongSun; JiatongSun; LihongRen; LihongRen; ShuguangZhao; ShuguangZhao; Xiang-DanLi; Xiang-DanLi; Myong-HoonLee;

Keywords:Laser beam transmission;Laser beams;Light beams;Optical components;Photosensitive materials;Ultraviolet radiation;

Abstracts:In this manuscript, photo-sensitive polysulfone thin layers, CMPSF200-HCx thin layers, are utilized to vertically align liquid crystals ... [Opt. Mater. Express 9, 3700-3708 (2019)]

Graphene-based metamaterial transmitarray antenna design for the generation of tunable orbital angular momentum vortex electromagnetic waves

ZanKuiMeng; YanShi; YanShi; WenYueWei; YingZhang; LongLi; LongLi;

Keywords:Electric fields;Optical angular momentum;Particle scattering;Spectroscopy;Spiral phase;Vortex beams;

Abstracts:A graphene-based metamaterial transmitarray antenna is proposed to generate tunable orbital angular momentum (OAM) vortex waves in ... [Opt. Mater. Express 9, 3709-3716 (2019)]

Refractive index of sputtered germanium films in the 2.5-13 µm infrared spectral region

D.J.Carney; R.Magnusson;

Keywords:Effective refractive index;Refractive index;Scanning electron microscopy;Waveguide design;Wire grid polarizers;X ray diffraction;

Abstracts:The objective of this work is to quantify the refractive index of germanium films relative to film thickness. The films are fabricated ... [Opt. Mater. Express 9, 3680-3690 (2019)]

Temperature dependent optical properties of SnO_2 film study by ellipsometry

JunboGong; JunboGong; JunboGong; XiangqiWang; XiaodongFan; RuchengDai; ZhongpingWang; ZengmingZhang; ZengmingZhang; ZejunDing;

Keywords:Blue shift;Extinction coefficients;Nanopositioning equipment;Optical constants;Optical properties;X ray diffraction;

Abstracts:In this study, columbite phase tin oxide film was deposited onto quartz glass using the thermal evaporation method. An ellipsometry ... [Opt. Mater. Express 9, 3691-3699 (2019)]

C-shaped split ring resonator terahertz toroidal dipole metasurfaces

ShuangWang; XiaoliZhao; SongWang; JianyuZhu; QuanLi; QuanLi; YaxinWang;

Keywords:Blue shift;Q factor;Red shift;Scattering theory;Split ring resonators;Terahertz spectroscopy;

Abstracts:We designed and fabricated terahertz toroidal dipole metasurfaces based on a C-shaped split ring resonator metallic pattern fabricated on a ... [Opt. Mater. Express 9, 3657-3665 (2019)]

Spectroscopic and lasing properties of Er^3+/Yb^3+-doped fluorophosphate glass with small additives of phosphates

E.Kolobkova; E.Kolobkova; A.Alkhlef; A.Yasukevich; A.Babkina;

Keywords:Energy transfer;Erbium doped fiber amplifiers;Laser materials;Optical amplifiers;Scanning electron microscopy;Spontaneous emission;

Abstracts:The influence of lead fluoride on the formation and luminescent properties of glass and glass-ceramics has been studied. Using the ... [Opt. Mater. Express 9, 3666-3679 (2019)]

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