Results 1 to 10 of about 11,975 (129)

Advances in silicon-based, integrated tunable semiconductor lasers [PDF]

open access: yesNanophotonics, 2023
Tunable semiconductor lasers have many important applications such as wavelength division multiplexing, light detection and ranging, and gas detection. The increased interest in silicon photonics has led to the rapid development of miniaturized on-chip ...
Yang Changjin   +14 more
doaj   +2 more sources

Time-delay signature suppression in delayed-feedback semiconductor lasers as a paradigm for feedback control in complex physiological networks [PDF]

open access: yesFrontiers in Network Physiology, 2023
Physiological networks, as observed in the human organism, involve multi-component systems with feedback loops that contribute to self-regulation. Physiological phenomena accompanied by time-delay effects may lead to oscillatory and even chaotic dynamics
Yanhua Hong   +2 more
doaj   +2 more sources

Semiconductor lasers with integrated metasurfaces for direct output beam modulation, enabled by innovative fabrication methods [PDF]

open access: yesNanophotonics, 2023
Semiconductor lasers play critical roles in many different systems, ranging from optical communications to absorption spectroscopy for environmental monitoring.
Wen Dandan, Crozier Kenneth B.
doaj   +2 more sources

Advances in Semiconductor Lasers Based on Parity–Time Symmetry [PDF]

open access: yesNanomaterials
Semiconductor lasers, characterized by their high efficiency, small size, low weight, rich wavelength options, and direct electrical drive, have found widespread application in many fields, including military defense, medical aesthetics, industrial ...
Hongbo Sha   +16 more
doaj   +2 more sources

Fast Response GaAs Photodetector Based on Constructing Electron Transmission Channel

open access: yesCrystals, 2021
Low-dimensional GaAs photodetectors have drawn a great deal of attention because of their unique absorption properties and superior responsivity. However, their slow response speed caused by surface states presents challenges.
Shuai Guo   +7 more
doaj   +1 more source

Band structural and absorption characteristics of antimonene/bismuthene monolayer heterojunction calculated by first-principles

open access: yesFrontiers in Chemistry, 2022
The band gap of lateral heterojunctions (LHSs) can be continuously tuned by changing the widths of their components. In this work, Sb/Bi LHSs based on monolayer Sb and Bi atoms with armchair and zigzag interfaces are constructed, respectively.
Yanyan Zhan   +7 more
doaj   +1 more source

NO2 Adsorption Sensitivity Adjustment of As/Sb Lateral Heterojunctions through Strain: First Principles Calculations

open access: yesCrystals, 2023
Strain engineering is an effective way to adjust the sensing properties of two-dimensional materials. In this paper, lateral heterojunctions (LHSs) based on arsenic and antimony have been designed along the armchair (AC) or zigzag (ZZ) edges.
Li Yang   +7 more
doaj   +1 more source

Effective Failure Analysis for Packaged Semiconductor Lasers with a Simple Sample Preparation and Home-Made PEM System

open access: yesPhotonics, 2021
As the application requirements of semiconductor lasers continue to increase, severe challenges are brought to the reliability of semiconductor lasers.
Tianyu Sun, Lei Qiao, Mingjun Xia
doaj   +1 more source

Processes of the Reliability and Degradation Mechanism of High-Power Semiconductor Lasers

open access: yesCrystals, 2022
High-power semiconductor lasers have attracted widespread attention because of their small size, easy modulation, and high conversion efficiency. They play an important role in national economic construction and national defense construction, including ...
Yue Song   +11 more
doaj   +1 more source

Brief Review of Photocatalysis and Photoresponse Properties of ZnO–Graphene Nanocomposites

open access: yesEnergies, 2021
As a typical wide bandgap semiconductor, ZnO has received a great deal of attention from researchers because of its strong physicochemical characteristics. During the past few years, great progress has been made in the optoelectronic applications of ZnO,
Chenhao Gao   +10 more
doaj   +1 more source

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