Results 51 to 60 of about 6,603,930 (212)

Design and Fabrication of the Reliable GaN Based Vertical-Cavity Surface-Emitting Laser via Tunnel Junction

open access: yesCrystals, 2019
In this study, we theoretically designed and experimentally fabricated an InGaN vertical-cavity surface-emitting laser (VCSEL) with a tunnel junction (TJ) structure. From numerical simulation results, the optical loss of the device can be reduced by a TJ
Chih-Chiang Shen   +11 more
doaj   +1 more source

Experimental realization of dual task processing with a photonic reservoir computer

open access: yesAPL Photonics, 2020
We experimentally demonstrate the possibility to process two tasks in parallel with a photonic reservoir computer based on a vertical-cavity surface-emitting laser (VCSEL) as a physical node with time-delay optical feedback.
Jeremy Vatin   +2 more
doaj   +1 more source

Contact lens embedded holographic pointer

open access: yesScientific Reports, 2023
In this paper we present an infrared laser pointer, consisting of a vertical-cavity surface-emitting laser (VCSEL) and a diffractive optical element (DOE), encapsulated into a scleral contact lens (SCL).
François-Maël Robert   +6 more
doaj   +1 more source

Fourier Ptychography-Based Measurement of Beam Divergence Angle for Vertical Cavity Surface-Emitting Laser

open access: yesPhotonics, 2023
The Vertical Cavity Surface-Emitting Laser (VCSEL) has led to the rapid development of advanced fields such as communication, optical sensing, smart cars, and more. The accurate testing of VCSEL beam quality is an important prerequisite for its effective
Leilei Jia, Xin Qian, Lingyu Ai
doaj   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

open access: yesAdvanced Physics Research, Volume 5, Issue 7, July 2026.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang   +2 more
wiley   +1 more source

External cavity mode structure of a two-mode VCSEL subject to optical feedback [PDF]

open access: yes, 2007
We consider a multi-transverse-mode vertical-cavity surface-emitting laser (VCSEL) subject to optical feedback. The system is modeled by a partial differential equation for the spatial carrier population, which is coupled to delay differential equations ...
Green, K   +5 more
core   +1 more source

High-Performance Zn-Diffusion 850-nm Vertical-Cavity Surface-Emitting Lasers With Strained InAlGaAs Multiple Quantum Wells

open access: yesIEEE Photonics Journal, 2010
We demonstrate a high-performance Zn-diffusion 850-nm vertical-cavity surface-emitting laser (VCSEL). By the use of strained InAlGaAs/AlGaAs multiple quantum wells for the active region, our structure can have a much higher maximum output power, higher ...
J.-W. Shi   +6 more
doaj   +1 more source

Low‐Threshold and Broad‐Wavelength‐Tunable CsPbClxBr3‐x/SiO2/Ag Hybrid Cavity Plasmonic Nanolaser Operated at Room Temperature

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Precise and controllable laser wavelength modulation over a broad spectral range in nanoscale devices is pivotal for advancing next‐generation optoelectronic technologies. Herein, we synthesized high‐quality CsPbBr3 nanowires (NWs) via the anti‐solvent method and constructed a CsPbBr3/SiO2/Ag hybrid structure, demonstrating both photonic and ...
Yizun Zhou   +10 more
wiley   +1 more source

Long wavelength VCSEL-by-VCSEL optical injection-Locking [PDF]

open access: yes, 2009
VCSEL-by-VCSEL optical injection-locking to obtain high cut-off frequencies of 1.3 μm Vertical-Cavity Surface-Emitting Lasers (VCSELs) is demonstrated. A detailed physical explanation of the underlying mechanism is presented.
Sirbu, A.   +13 more
core   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

open access: yesAdvanced Materials Technologies, Volume 11, Issue 12, 18 June 2026.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee   +4 more
wiley   +1 more source

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