Results 1 to 10 of about 440,588 (315)

What is the true value of bulk band gap of lithium tetraborate single crystal?

Фізика і хімія твердого тіла, 2022
Substantial variances in the bulk band gap of lithium tetraborate single crystal determined from numerous theoretical calculations as well as from experimental measurements give rise to the problem what is the true value of Eg for that crystal.
Ya.V. Burak, V.T. Adamiv, I.M. Teslyuk, I.Ye. Moroz, S.Z. Malynych   +4 more
doaj   +1 more source

Optical Turbulence Profile in Marine Environment with Artificial Neural Network Model

Remote Sensing, 2022
Optical turbulence strongly affects different types of optoelectronic and adaptive optics systems. Systematic direct measurements of optical turbulence profiles [Cn2(h)] are lacking for many climates and seasons, particularly in marine environments ...
Cuicui Bi, Chun Qing, Pengfei Wu, Xiaomei Jin, Qing Liu, Xianmei Qian, Wenyue Zhu, Ningquan Weng   +7 more
doaj   +1 more source

Photon–phonon entanglement in the acousto-optic interaction of vector beams

Results in Optics, 2023
We demonstrate that acousto-optic diffraction under certain conditions can be accompanied by inter-system photon–phonon entanglement. A photon diffracted during Stokes acousto-optic interaction of acoustic and optical vector beams represents a vector ...
Myroslav Kostyrko, Yuriy Vasylkiv, Ihor Skab, Rostyslav Vlokh   +3 more
doaj   +1 more source

Effect of ellipticity of optical eigenwaves on the enhancement of efficiency of acousto-optic Bragg diffraction. A case of optically active Pb5Ge3O11 crystals

AIP Advances, 2022
We show that the existence of optical activity in an optical material can lead to essential enhancement of acousto-optic (AO) figure of merit. The reason is that the ellipticity of interacting optical eigenwaves approaches unity near the optical axis and
Oksana Mys, Myroslav Kostyrko, Dmytro Adamenko, Iryna Martynyuk-Lototska, Ihor Skab, Rostyslav Vlokh   +5 more
doaj   +1 more source

Sensitivity Analysis of Ozone Profiles Retrieved from SCIAMACHY Limb Radiance Based on the Weighted Multiplicative Algebraic Reconstruction Technique

Remote Sensing, 2022
A detailed sensitivity analysis of ozone density profile retrieval was applied to scattering solar radiance spectra measured with the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) instrument aboard the ENVIronmental ...
Fang Zhu, Fuqi Si, Haijin Zhou, Ke Dou, Minjie Zhao, Quan Zhang   +5 more
doaj   +1 more source

Design of Lidar Data Acquisition and Control System in High Repetition Rate and Photon-Counting Mode: Providing Testing for Space-Borne Lidar

Sensors, 2022
For ground-based lidars in atmospheric observation, their data acquisition unit and control unit usually work independently. They usually require the cooperation of large-volume, high-power-consumption Industrial Personal Computer (IPC).
Liangliang Cheng, Chenbo Xie, Ming Zhao, Lu Li, Hao Yang, Zhiyuan Fang, Jianfeng Chen, Dong Liu, Yingjian Wang   +8 more
doaj   +1 more source

The Optics in Physics textbooks

Optica Pura y Aplicada, 2021
Se agradece también al Ministerio de Ciencia, Innovación y Universidades de España por el apoyo financiero parcial en los proyectos PGC2018-101814-B-I00 y PGC2018-101948-B-I00.
Álvarez Jubete, E., Hevia Artime, Isabel, Toffolatti, Luigi   +2 more
openaire   +2 more sources

Total Ozone Columns from the Environmental Trace Gases Monitoring Instrument (EMI) Using the DOAS Method

Remote Sensing, 2021
Global measurements of total ozone are necessary to evaluate ozone hole recovery above Antarctica. The Environmental Trace Gases Monitoring Instrument (EMI) onboard GaoFen 5, launched in May 2018, was developed to measure and monitor the global total ...
Yuanyuan Qian, Yuhan Luo, Fuqi Si, Haijin Zhou, Taiping Yang, Dongshang Yang, Liang Xi   +6 more
doaj   +1 more source

Integrated Encapsulation and Implementation of a Linear-Mode APD Detector for Single-Pixel Imaging Lidar

Photonics, 2023
Single-pixel imaging lidar is a novel technology that leverages single-pixel detectors without spatial resolution and spatial light modulators to capture images by reconstruction. This technique has potential imaging capability in non-visible wavelengths
Akang Lv, Kee Yuan, Jian Huang, Dongfeng Shi, Shiguo Zhang, Yafeng Chen, Zixin He   +6 more
doaj   +1 more source

Spot Invalid Point Repair Algorithm of Detector Array Measurement System Based on Image Correlation Coefficient

Photonics, 2023
The detector array method has been widely used in the field of high-energy laser far-field spot parameter measurement due to its ability to directly measure the far-field spot of high-energy lasers, wide dynamic range of the detectors, high system ...
Yilun Cheng, Gangyu Wang, Fengfu Tan, Feng He, Laian Qin, Zhigang Huang, Zaihong Hou   +6 more
doaj   +1 more source