Photothermal and optoacoustic spectroscopy: State of the art and prospects

MA Proskurnin, VR Khabibullin, LO Usoltseva… - Physics …, 2022 - iopscience.iop.org
The main issues and areas of application of photothermal and optoacoustic spectroscopy
are reviewed. Progress in innovative techniques in the most actively developing areas is …

Free electron concentration dependent sub-bandgap optical absorption characterization of bulk GaN crystals

S Pimputkar, S Suihkonen, M Imade, Y Mori… - Journal of crystal …, 2015 - Elsevier
Optical transmission measurements were performed on high quality bulk gallium nitride
(GaN) crystals grown by sodium flux, hydride vapor phase epitaxy, and the ammonothermal …

UV detector based on InAlN/GaN-on-Si HEMT stack with photo-to-dark current ratio> 107

AS Pratiyush, SB Dolmanan, S Tripathy… - Applied Physics …, 2017 - pubs.aip.org
We demonstrate an InAlN/GaN-on-Si high electron mobility transistor based UV detector
with a photo-to-dark current ratio of> 10 7. The Ti/Al/Ni/Au metal stack was evaporated and …

Low threshold GaN-based microdisk lasers on silicon with high Q factor

Y Mei, M Xie, H Long, L Ying, B Zhang - Journal of Lightwave …, 2022 - opg.optica.org
III-nitride-based microdisk lasers on Si offer the potential in large-scale monolithic Si-based
photonic integrated circuits. Here, we demonstrate a new approach to fabricating III-nitride …

Thermally and optically induced effects on sub-band gap absorption in nanocrystalline CdSe (nc-CdSe) thin films

K Sharma, AS Al-Kabbi, GSS Saini, SK Tripathi - Current Applied Physics, 2013 - Elsevier
Nanocrystalline cadmium selenide (nc-CdSe) thin films have been prepared by thermal
evaporation using the inert gas condensation (IGC) technique. Transmission electron …

[PDF][PDF] 硅基GaN 微腔制作及其激射特性(特邀)

马立龙, 谢敏超, 欧伟, 梅洋, 张保平 - 光子学报, 2022 - researching.cn
提出了一种新的Si 衬底上GaN 微盘谐振腔的制备方式, 避免了传统Si 基GaN
器件中晶体质量较差以及外延层较厚对器件性能的影响. 本工作中GaN 的外延生长使用蓝宝石 …

Фототермическая и оптоакустическая спектроскопия: современное состояние и перспективы

МА Проскурнин, ВР Хабибуллин, ЛО Усольцева… - Успехи физических …, 2022 - ufn.ru
Рассмотрены основные задачи и области применения фототермической и
оптоакустической спектроскопии. Обсуждаются направления развития новых методов в …

Argon ion beam assisted magnetron sputtering deposition of boron-doped a-Si: H thin films with improved conductivity

L Wang, W Wang, J Huang, Y Zeng, R Tan… - Journal of non …, 2013 - Elsevier
Boron-doped a-Si: H thin films were deposited by ion beam assisted magnetron sputtering
under different assisted argon ion beam energies, and the changes of structural and …

Improvement in structural and electrical characteristics of nonpolar a-plane Si-doped n-AlGaN

S Chen, X Zhang, A Fan, H Chen, C Li, L Lu… - Journal of Materials …, 2020 - Springer
Abstract Nonpolar Si-doped AlGaN with high electron concentration (EC) and superior
surface morphology (SM) layers were successfully grown on r-plane sapphire substrates for …

Dimension Dependent Optical Behavior of GaN Across 0D, 1D, 2D and 3D Structures

MS Morshed - 2023 6th International Conference on Electrical …, 2023 - ieeexplore.ieee.org
This study distinguishes itself by conducting a comparative analysis of GaN's optical
characteristics across different dimensions, namely 0D, 1D, 2D and 3D. The primary …