Results 91 to 100 of about 2,589,646 (347)
Ultrashort-pulse generation from quantum-dot semiconductor diode lasers [PDF]
, 2008 In this thesis, novel regimes of mode locking in quantum dot semiconductor laser diodes have been investigated by exploiting the unique features offered by quantum dots.
Cataluna, Maria Ana
core
Modulator-free quadrature amplitude modulation signal synthesis [PDF]
, 2014 The ability to generate high-speed on-off-keyed telecommunication signals by directly modulating a semiconductor laser’s drive current was one of the most exciting prospective applications of the nascent field of laser technology throughout the 1960s ...
Kelly, Brian +6 more
core +1 more source
Design of intrinsically safe laser auxiliary light source for low-illumination video acquisitio
Gong-kuang zidonghua, 2019 For problems of high power consumption, large volume, close irradiation distance and poor concealment of existing auxiliary light source for low-illumination video acquisition, a design scheme of intrinsically safe laser auxiliary light source for low ...
LI Wenfeng, CAI Pengbo
doaj +1 more source
Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
Advanced Functional Materials, EarlyView.We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar +13 more
wiley +1 more source
Photonic crystals as functional mirrors for semiconductor lasers [PDF]
, 2008 In recent years, interest has grown in the research fields of semiconductor lasers and photonic crystals. This thesis looks at integrating photonic crystals into existing semiconductor laser technology to act as functional laser mirrors.
Moore, Stephen A.
core
A novel power stability drive system of semiconductor Laser Diode for high-precision measurement
Measurement + Control, 2019 In view of the strict requirements of the current high-precision measurement system for stable output power of the semiconductor LD (Laser Diode), a semiconductor LD stable power drive and multi-closed-loop control system are proposed after analyzing the
He Huang +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Tandem 2D vdW ferroelectric heterojunctions enable spectrally selective, self‐powered bipolar opto‐synaptic responses for retinal ON/OFF bipolar cell emulation and wavelength‐programmable logic operations. This work establishes vdW ferroelectric heterojunctions as a compelling materials platform for energy‐efficient, adaptive, and human‐like artificial
Rajiv Kumar Pandey +4 more
wiley +1 more source
Compound laser modes of mutually delay-coupled lasers : bifurcation analysis of the locking region [PDF]
, 2004 A system of two mutually delay-coupled semiconductor lasers with a small delay of 170 ps in the coupling is studied. Apart from a possible difference in their optical frequencies, we consider two identical lasers.
Lenstra, D, Erzgraber, H, Krauskopf, B
core
PhotonicsCompact high-power sub-nanosecond laser pulse sources with a wavelength of 940 nm are developed and studied. A design for laser pulse sources based on a vertical stack is proposed, which includes a semiconductor laser chip and a current switch chip.
Sergey Slipchenko +13 more
doaj +1 more source
A Novel Ultra‐Sensitive Semiconductor SERS Substrate Boosted by the Coupled Resonance Effect
Advancement of science, 2019 Recent achievements in semiconductor surface‐enhanced Raman scattering (SERS) substrates have greatly expanded the application of SERS technique in various fields.
Lili Yang +10 more
semanticscholar +1 more source