Results 71 to 80 of about 3,950 (203)

Germanium-on-silicon mid-infrared arrayed waveguide grating multiplexers [PDF]

, 2013
In this letter, we describe the use of a germanium-on- silicon waveguide platform to realize an arrayed waveguide grating (AWG) operating in the 5 mu m wavelength range, which can be used as a wavelength multiplexer for mid-infrared (midIR) light engines
Aditya Malik, Gunther Roelkens, Joris Van Campenhout, Muhammad Muneeb, Roger Loo, Shibnath Pathak, Student Member, Yosuke Shimura   +7 more
core   +2 more sources

Introducing the Groundbreaking Design of the First n‐Input AND Gate Using an Optical‐MOSFET With a Revolutionary Structure of Pulse‐Shaped Gates

Advanced Photonics Research, Volume 7, Issue 5, May 2026.
The paper introduces the first logic gate implementation using optical metal–oxide‐semiconductor field‐effect transistor architecture, specifically designing two‐input and three‐input AND gates based on a silicene waveguide with pulse‐shaped gates. The key innovations include: (1) pulse‐shaped gate design.
Hamed Emami‐Nejad, Ali Mir
wiley   +1 more source

Interband cascade laser on silicon

2017 IEEE Photonics Conference (IPC) Part II, 2017
Mid-infrared (MIR) silicon photonic systems show great promise for miniaturizing a variety of sensing and detection technologies. Rapid progress has been made in recent years, and numerous passive and active MIR devices have now been constructed on various silicon-based platforms. We previously reported the heterogeneous integration on silicon of Fabry–
Alexander Spott, Eric J. Stanton, Alfredo Torres, Michael L. Davenport, Chadwick L. Canedy, Igor Vurgaftman, Mijin Kim, Chul Soo Kim, Charles D. Merritt, William W. Bewley, Jerry R. Meyer, John E. Bowers   +11 more
openaire   +1 more source

Intersubband Quantum Disc-in-Nanowire Photodetectors with Normal-incidence Response in the Long-wavelength Infrared

, 2017
Semiconductor nanowires offer great potential for realizing broadband photodetectors that are compatible with silicon technology. However, the spectral range of such detectors has so far been limited to selected regions in the ultraviolet, visible and ...
Borgstrom, Magnus T., Fu, Ying, Geijselaers, Irene, Heurlin, Magnus, Jain, Vishal, Karimi, Mohammad, Limpert, Steven, Linke, Heiner, Nowzari, Ali, Pettersson, Hakan, Samuelson, Lars, Zeng, Xulu   +11 more
core   +1 more source

Proof-of-principle of surface detection with air-guided quantum cascade lasers [PDF]

, 2008
We report a proof-of-principle of surface detection with air-guided quantum cascade lasers. Laser ridges were designed to exhibit an evanescent electromagnetic field on their top surface that can interact with material or liquids deposited on the device.
Colombelli, Raffaele, Krysa, Audrey B., Moreau, Virginie, Painter, Oskar, Perahia, Raviv, Wilson, Luke R.   +5 more
core   +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

Effect of heating and cooling of photogenerated electron-hole plasma in optically pumped graphene on population inversion

, 2011
We study the characteristics of photogenerated electron-hole plasma in optically pumped graphene layers at elevated (room) temperatures when the interband and intraband processes of emission and absorption of optical phonons play a crucial role.
Akira Satou, Auer, Balandin, Balev, Butscher, Dubinov, Dyakonov, Falkovsky, Falkovsky, Foster, George, Javey, Kim, Kuroda, Kuznetsov, Kuznetsov, Lazzwei, Maxim Ryzhii, Neto, Neugebauer, Orlita, Otsuji, Pennigton, Peres, Rana, Rana, Ryzhii, Ryzhii, Ryzhii, Ryzhii, Ryzhii, Satou, Satou, Sekwao, Shishir, Shur, Sprinkle, Steiner, Sun, Taiichi Otsuji, Vasko, Victor Ryzhii, Vladimir Mitin, Wang, Winzer   +44 more
core   +1 more source

Investigation of Injection-Locked Quantum Cascade Lasers based on Rate equations [PDF]

, 2013
International audienceThe modulation properties of optical injection-locked quantum cascade lasers (QCLs) are investigated theoretically via a simple low dimensional rate equation model.
Even, Jacky, GRILLOT, Frédéric, Kovanis, Vassilios, Wang, Cheng   +3 more
core   +3 more sources

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

Nitric Oxide Analysis Down to ppt Levels by Optical-Feedback Cavity-Enhanced Absorption Spectroscopy

Sensors, 2018
Monitoring nitric oxide at the trace level is required in a large range of applications. We report on a trace gas analyzer optimized for nitric oxide measurements by Optical Feedback Cavity Enhanced Absorption Spectroscopy with an interband cascade laser
Lucile Richard, Daniele Romanini, Irène Ventrillard   +2 more
doaj   +1 more source