Results 61 to 70 of about 6,602,816 (280)
Mode structure of a vertical-cavity surface-emitting laser subject to optical feedback [PDF]
, 2006 We present an analysis of the external cavity mode (ECM) structure of a vertical-cavity surface-emitting laser subject to optical feedback. We consider a model in which two transverse optical modes are excited.
Green, K +4 more
core
High-speed modulation, wavelength, and mode control in vertical-cavity surface-emitting lasers
, 2022 Paper 93810F, 10 S.We address demands and challenges for GaAs-based Vertical-Cavity Surface-Emitting Lasers (VCSEL) in data communication. High speed modulation (similar to 50Gb/s) at a high reliability can be realized with a proper VCSEL design ...
Schmidt, F. +14 more
core +1 more source
Low-threshold surface-emitting colloidal quantum-dot circular Bragg laser array
Light: Science & ApplicationsColloidal quantum dots (CQDs) are attractive gain media due to their wavelength-tunability and low optical gain threshold. Consequently, CQD lasers, especially the surface-emitting ones, are promising candidates for display, sensing and communication ...
Yangzhi Tan +6 more
doaj +1 more source
Advanced Materials Interfaces, EarlyView.When exposed to light of a defined wavelength, the photoisomerization of azobenzene chromophores leads to polymer reorientation, generating stresses that result in solvent‐facilitated localized delamination of the film from the substrate. Additionally, blisters that form spontaneously when exposed to an aqueous environment can be manipulated via ...
James Robert Benson +4 more
wiley +1 more source
Recent Advances of Slip Sensors for Smart Robotics
Advanced Materials Technologies, EarlyView.This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang +8 more
wiley +1 more source
Noise and signal modeling of various VCSEL structures [PDF]
, 2004 Current evolution in Datacoms and Gigabit Ethernet have made 850nm Vertical Cavity Surface Emitting Lasers(VCSEL) the most important and promising emitter.
Perchoux, Julien +7 more
core +1 more source
Vertical-Cavity Surface-Emitting Laser With a Chiral Nematic Liquid Crystal Overlay
IEEE Photonics Journal, 2014 We demonstrate measurement results of the light emission of vertical-cavity surface-emitting lasers (VCSELs) with chiral liquid crystal (CLC) overlay (CLC-VCSEL). Two different CLC materials with different chiral-phase temperature range are presented and
Y. Xie +3 more
doaj +1 more source
Recent Advances in Light‐Addressable Electrochemistry for Spatially Resolved Applications
Advanced Materials Technologies, EarlyView.This comprehensive review highlights light‐addressable electrochemistry as a powerful tool that uses light to control localized chemical reactions on unstructured semiconductor surfaces. The work evaluates advanced strategies to optimize electrode materials for enhanced spatial resolution and stability. Furthermore, it showcases diverse applications in
Nhi Trang Vo +2 more
wiley +1 more source
Passively mode-locked diode-pumped surface-emitting semiconductor laser
, 2000 A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C. +19 more
core +1 more source
Spectral behavior of long wavelength VCSELs [PDF]
, 2008 For a long time, only a small wavelength range of Vertical-Cavity Surface-Emitting Lasers (VCSEL) was available. The current evolution in process technology allows the fabrication of long wavelength VCSEL that is interesting for Telecom systems because ...
Bacou, Alexandre +2 more
core +1 more source