Mid-infrared pyroelectric detector with metasurface electrode for broadband enhanced absorption

Y Zou, S Chen, J Sun, S Zhou - Journal of Physics D: Applied …, 2023 - iopscience.iop.org
Pyroelectric photodetectors have continuously been an attractive candidate due to their
noncryogenic and easy-to-fabricate specifics. Because the detectivity or resolution of the …

Temperature-dependent visible to near-infrared optical properties of 8 mol% Mg-doped lithium tantalate

K Moutzouris, G Hloupis, I Stavrakas… - Optical Materials …, 2011 - opg.optica.org
We report the experimental determination of the ordinary and extraordinary refractive index
of 8 mol% Mg-doped congruent lithium tantalate (MCLT). Refractive index measurements …

Mirrorless optical parametric oscillation in bulk PPLN and PPLT: a feasibility study

CE Minor, RS Cudney - Applied Physics B, 2017 - Springer
We examine theoretically under what conditions mirrorless optical parametric oscillation can
be obtained in PPLN and PPLT. We take into account the damage threshold, idler …

Femtosecond third-order optical nonlinearity of polycrystalline BiFeO3

B Gu, Y Wang, J Wang, W Ji - Optics express, 2009 - opg.optica.org
We report both linear and nonlinear optical properties of a ferroelectric thin film of
polycrystalline BiFeO_3 deposited on a quartz substrate. The linear refraction index and …

The influence of the volume concentration of hydrogen on the fine structure of the IR absorption spectra and conductivity features in congruent LiTaO3 crystals

AV Yatsenko, SV Yagupov, MN Palatnikov, NV Sidorov… - Solid State Ionics, 2024 - Elsevier
A new method for changing the volume concentration of hydrogen in congruent LiTaO 3
(lithium tantalate, LT) crystals has been studied. It has been established that pre-treatment of …

Active control of thermal dephasing effect in high power continuous wave single-pass second harmonic generation

SG Sabouri, A Khorsandi - IEEE Journal of Quantum Electronics, 2015 - ieeexplore.ieee.org
In this paper, we present a theoretical model that describes the performance of a specific
oven configuration used to actively control the effect of thermal dephasing on the output …

Focusing optimization for high-power continuous-wave second-harmonic generation in the presence of thermal effects

SG Sabouri, CK Suddapalli, A Khorsandi… - IEEE Journal of …, 2014 - ieeexplore.ieee.org
We study thermal effects in high-power single-pass second-harmonic generation (SP-SHG)
of continuous-wave (cw) green radiation in MgO: sPPLT and describe optimization of critical …

[PDF][PDF] 基于周期极化钽酸锂晶体的光参变振荡器技术研究

魏星斌, 彭跃峰, 王卫民, 陈兴无, 王春华, 谢刚 - 光学学报, 2011 - researching.cn
摘要对基于周期极化钽酸锂(PPLT) 晶体的光参变振荡器(OPO) 技术进行了理论分析和实验研究
, 通过三波混频耦合波方程组, 计算了PPLT OPO 的波长调谐曲线. 分别研究了信号光单谐振 …

薄膜材料折射率色散的进展与展望

叶帆, 顾兵, 黄晓琴 - 光学仪器, 2010 - cqvip.com
薄膜材料在现代科技中应用广泛, 其折射率是光学薄膜设计中的重要参量.
首先简要介绍了折射率色散基本理论, 其后着重分析了Cauchy 色散公式, Sellmeier 公式 …

Multisegment oven scheme for Gouy phase shift compensation in second-harmonic generation

SG Sabouri, A Khorsandi - Applied Optics, 2015 - opg.optica.org
We present a theoretical model that describes a multisegment oven configuration to
compensate for the Gouy phase shift in the tight focusing regime. The model is provided to …