Results 21 to 30 of about 11,995 (149)

Controlling the Crystallinity and Morphology of Bismuth Selenide via Electrochemical Exfoliation for Tailored Reverse Saturable Absorption and Optical Limiting

open access: yesNanomaterials
As an emerging two-dimensional (2D) Group-VA material, bismuth selenide (Bi2Se3) exhibits favorable electrical and optical properties. Here, three distinct morphologies of Bi2Se3 were obtained from bulk Bi2Se3 through electrochemical intercalation ...
Hao Yan   +11 more
doaj   +1 more source

Laser fabrication of MXene-based planar micro-supercapacitors

open access: yesFrontiers in Chemistry
This mini-review summarizes recent advances in MXene-based planar micro-supercapacitors fabricated by laser technologies. Laser ablation enables ultrafast maskless patterning, laser cutting achieves mechanically adaptive flexible arrays, and laser ...
Qian-Kun Li   +6 more
doaj   +1 more source

Brief Review of Epitaxy and Emission Properties of GaSb and Related Semiconductors

open access: yesCrystals, 2017
Groups III–V semiconductors have received a great deal of attention because of their potential advantages for use in optoelectronic and electronic applications.
Shouzhu Niu   +6 more
doaj   +1 more source

Special Issue “Semiconductor Laser Dynamics: Fundamentals and Applications”

open access: yesPhotonics, 2020
With the advent of integrated photonics, a crucial role is played by semiconductor diode lasers (SDLs) as coherent light sources. Old paradigms of semiconductor laser dynamics, like optical injection, external feedback and the coupling of lasers ...
Daan Lenstra
doaj   +1 more source

Gigahertz femtosecond laser-by a novel asymmetric one-dimensional photonic crystal saturable absorber device with defect layer

open access: yesNanophotonics, 2022
High repetition frequency (HRF) ultrashort pulse fiber laser has been widely used in laser cold processing. The technical solutions such as short cavity length fiber laser have been proposed to achieve HRF ultrashort pulse output recently.
Song Chun-Yu   +14 more
doaj   +1 more source

First-principle calculations of Sb2S3 energy bands and electronic structures with different crystallization degrees

open access: yesAIP Advances
Based on first-principles density functional theory, crystal structure models of antimony sulfide (Sb2S3) in three distinct crystalline states were constructed and the physical properties of these states were investigated.
Wanting Xiang   +8 more
doaj   +1 more source

Ultralow threshold surface emitting ultraviolet lasers with semiconductor nanowires

open access: yesScientific Reports, 2023
Surface-emitting (SE) semiconductor lasers have changed our everyday life in various ways such as communication and sensing. Expanding the operation wavelength of SE semiconductor lasers to shorter ultraviolet (UV) wavelength range further broadens the ...
Mohammad Fazel Vafadar, Songrui Zhao
doaj   +1 more source

Single-Mode Semiconductor Nanowire Lasers With Coupled Cavities

open access: yesFrontiers in Chemistry, 2021
Semiconductor nanowires are one of the most fascinating topics over the past few decades. As miniaturized coherent light sources, semiconductor nanowires have been attracting tremendous attention in recent years for scientific and technological interest ...
Salman Ullah   +7 more
doaj   +1 more source

Semiconductor nanowire plasmonic lasers

open access: yesNanophotonics, 2019
Semiconductor nanowires (NW) hold great promise for micro/nanolasers owing to their naturally formed resonant microcavity, tightly confined electromagnetic field, and outstanding capability of integration with planar waveguide for on-chip optoelectronic ...
Li Chun   +5 more
doaj   +1 more source

All-optical intensity noise suppression for solid-state and semiconductor lasers

open access: yesJournal of Telecommunications and Information Technology, 2005
This paper will report on a new all-optical technique of relative intensity noise (RIN) suppression for solidstate and semiconductor lasers. The new scheme we have used is based on an unbalanced Mach-Zehnder interferometer (UMZI), which is able to ...
Mark Csörnyei   +2 more
doaj   +1 more source

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