Results 31 to 40 of about 211,204 (270)

A Low-Power Comparator-Based Automatic Power and Modulation Control Circuit for VCSEL Drivers

Photonics
This paper proposes an automatic power and modulation control (APMC) circuit that can directly detect the degradation of vertical cavity surface emitting laser (VCSEL) diodes by utilizing a novel voltage sensing mechanism, thereby eliminating the need ...
Yejin Choi, Sung-Min Park
doaj   +1 more source

Shape-controlled single-crystal growth of InP at low temperatures down to 220 °C. [PDF]

, 2020
III-V compound semiconductors are widely used for electronic and optoelectronic applications. However, interfacing III-Vs with other materials has been fundamentally limited by the high growth temperatures and lattice-match requirements of traditional ...
Amani, Matin, Chrzan, Daryl C, Chueh, Yu-Lun, Gupta, Niharika, Hettick, Mark, Javey, Ali, Li, Hao, Lien, Der-Hsien, Yang, Tzu-Yi, Yeh, Matthew   +9 more
core   +1 more source

Theoretically designed M@diaza[2.2.2]cryptand complexes: the role of non-covalent interactions in promoting NLO properties of organic electrides

Science and Technology of Advanced Materials
Organic excess electron compounds with significant nonlinear optical (NLO) properties are widely employed in optoelectronic applications. Herein, single-alkali metals with diaza[2.2.2] cryptand (M@crypt,M=Li, Na, and K) are investigated for ...
Atazaz Ahsin, Aamna Qamar, Qing Lu, Wensheng Bian   +3 more
doaj   +1 more source

Facile Preparation of Flexible Lateral 2D MoS₂ Nanosheets for Photoelectrochemical Hydrogen Generation and Optoelectronic Applications

Photonics, 2022
Two-dimensional (2D) materials have attracted significant attention with their high optical response due to their interesting and unique fundamental phenomena.
Ahmed Adel A. Abdelazeez, Amira Ben Gouider Trabelsi, Fatemah. H. Alkallas, Samira Elaissi, Mohamed Rabia   +4 more
doaj   +1 more source

Escape from an optoelectronic tweezer trap: experimental results and simulations [PDF]

, 2018
Optoelectronic tweezers (OET) are a microsystem actuation technology capable of moving microparticles at mm s−1 velocities with nN forces. In this work, we analyze the behavior of particles manipulated by negative dielectrophoresis (DEP) forces in an OET
Chamberlain, M. Dean, Chen, Yujie, Flood, Andrew G., Juvert, Joan, Kherani, Nazir P., Liu, Lin, Neale, Steven L., Nikitina, Adele, Wheeler, Aaron R., Zhang, Shuailong, Zhang, Yanfeng   +10 more
core   +1 more source

Miniaturized Continuous-Wave Terahertz Spectrometer With 3.6 THz Bandwidth Enabled by Photonic Integration and Microelectronics

IEEE Access
Broadband terahertz spectroscopy is a valuable analytical tool in science and a promising technology for industrial non-destructive, non-contact testing, e.g. thickness measurements of thin dielectric layers.
Simon Nellen, Lauri Schwenson, Lars Liebermeister, Milan Deumer, Sebastian Lauck, Martin Schell, Robert B. Kohlhaas   +6 more
doaj   +1 more source

Modulating Optoelectronic and Elastic Properties of Anatase TiO₂ for Photoelectrochemical Water Splitting

Molecules, 2023
Titanium dioxide (TiO2) has been investigated for solar-energy-driven photoelectrical water splitting due to its suitable band gap, abundance, cost savings, environmental friendliness, and chemical stability.
Akbar Hussain, Abdur Rauf, Ejaz Ahmed, Muhammad Saleem Khan, Shabeer Ahmad Mian, Joonkyung Jang   +5 more
doaj   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

A 5 Gb/s Optoelectronic Receiver IC in 180 nm CMOS for Short-Distance Optical Interconnects

Photonics
This paper presents a CMOS-based optoelectronic receiver integrated circuit (CORIC) realized in a standard 180 nm CMOS technology for the applications of short-distance optical interconnects.
Yunji Song, Sung-Min Park
doaj   +1 more source

GaAs-based optoelectronic neurons [PDF]

, 1993
An integrated, optoelectronic, variable thresholding neuron implemented monolithically in GaAs integrated circuit and exhibiting high differential optical gain and low power consumption is presented.
Kim, Jae H., Lin, Steven H., Psaltis, Demetri   +2 more
core   +1 more source