Results 51 to 60 of about 1,330 (176)

Performance Optimization of Hg_1-xCd_xTe Photovoltaic Detectors Under Strong Illumination Considering Temperature and Wavelength Dependencies

IEEE Photonics Journal
Currently, HgCdTe detectors are advancing towards very long wavelengths and room temperature operation. However, as operating temperatures and illumination intensity increase, the performance of these detectors deteriorates, evidenced by increased dark ...
Jiahui Chen, Wangyong Chen, Linlin Cai, Pengling Yang, Dahui Wang, Manling Shen, Xiangyang Li, Hui Qiao   +7 more
doaj   +1 more source

Challenges in Simultaneous Microstructuring and Hyperdoping of Germanium with Ultrafast Laser

physica status solidi (a), Volume 223, Issue 8, 22 April 2026.
Femtosecond laser processing is explored as a single‐step route to microstructure and hyperdope germanium for extended infrared absorption. Comparative experiments with and without a Ti precursor reveal that Ge's shallow green light absorption and low thermal conductivity drive intense localized melting, evaporation, and redeposition. Post‐cleaning and
Dmytro Gnatyuk, Sara Hamed, Masoud Ebrahimzadeh, Hanchen Liu, Ville Vähänissi, Pekka Laukkanen, Hele Savin, Xiaolong Liu   +7 more
wiley   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Formation Dirac point and the topological surface states for HgCdTe-QW and mixed 3D HgCdTe TI

EPJ Web of Conferences, 2017
In this paper the results of numerical calculations based on the finite difference method (FDM) for the 2D and 3D TI with and without uniaxial tensile strain for mixed Hg1-xCdxTe structures are presented.
Marchewka Michał
doaj   +1 more source

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Magnetoconductivity and Terahertz Response of a HgCdTe Epitaxial Layer

Sensors, 2018
An epitaxial layer of HgCdTe—a THz detector—was studied in magnetotransmission, magnetoconductivity and magnetophotoconductivity experiments at cryogenic temperatures.
Dmitriy Yavorskiy, Krzysztof Karpierz, Michał Baj, Małgorzata M. Bąk, Nikolai N. Mikhailov, Sergey A. Dvoretsky, Vladimir I. Gavrilenko, Wojciech Knap, Frederic Teppe, Jerzy Łusakowski   +9 more
doaj   +1 more source

Interfacial Synergy in a Band‐Aligned Low‐Dimensional Heterojunction Toward Broadband Photodetection

Advanced Science, Volume 13, Issue 20, 9 April 2026.
Monolithically integrating sensing and communication, a Ta2NiSe5/Sb2Te3 heterojunction achieves visible‐to‐near‐infrared photovoltaics with high‐speed terahertz photo‐thermoelectric detection at room temperature. By engineering a Type‐II van der Waals heterojunction, we overcome the intrinsic spectral limitations and disparate physical requirements of ...
Yuanfeng Wen, Kening Xiao, Yao Yang, Mengjie Jiang, Libo Zhang, Shicong Hou, Hang Ma, Yunduo Zhang, Wenqi Mo, Yiran Tan, Bolang Peng, Jinqiu Huang, Xueyuan Wei, Chunming Liu, Bangjian Zhao, Jiale He, Qing Li, Songyuan Ding, Yi Zhou, Guanhai Li, Xiaoshuang Chen   +20 more
wiley   +1 more source

Commentary: JWST near-infrared detector degradation— finding the problem, fixing the problem, and moving forward

AIP Advances, 2012
The James Webb Space Telescope (JWST) is the successor to the Hubble Space Telescope. JWST will be an infrared-optimized telescope, with an approximately 6.5 m diameter primary mirror, that is located at the Sun-Earth L2 Lagrange point.
Bernard J. Rauscher, Carl Stahle, Robert J. Hill, Matthew Greenhouse, James Beletic, Sachidananda Babu, Peter Blake, Keith Cleveland, Emmanuel Cofie, Bente Eegholm, C. W. Engelbracht, Donald N. B. Hall, Alan Hoffman, Basil Jeffers, Christine Jhabvala, Randy A. Kimble, Stanley Kohn, Robert Kopp, Don Lee, Henning Leidecker, Don Lindler, Robert E. McMurray Jr., Karl Misselt, D. Brent Mott, Raymond Ohl, Judith L. Pipher, Eric Piquette, Dan Polis, Jim Pontius, Marcia Rieke, Roger Smith, W. E. Tennant, Liqin Wang, Yiting Wen, Christopher N. A. Willmer, Majid Zandian   +35 more
doaj   +1 more source

Cyclic nanoindentation studies of HgCdTe epitaxial films

Materials Research Express, 2020
Hg _1− _x Cd _x Te ( x ∼0.29) epitaxial films have been subjected to cyclic nanoindentation using spherical indenter from tribological aspects related to the development of polishing process for preparing defect free surface.
Hemant Kumar Sharma, Rajesh Kumar Sharma, Raghvendra Sahai Saxena, Aditya Gokhale, Rajesh Prasad   +4 more
doaj   +1 more source

The Damage Effects on a HgCdTe Detector of a Short-Infrared Pulsed Laser with Different Pulse Widths

Micromachines
The high sensitivity of HgCdTe infrared detectors makes them highly vulnerable to laser irradiation, yet the influence of pulse width on damage behavior in the short-wave infrared (SWIR) band remains insufficiently understood.
Qiheng Wei, Xianfeng Wu, Lingyuan Wu, Yongqiang Zhang, Fuli Tan, Bo Fu, Wei Li, Yanglong Li   +7 more
doaj   +1 more source