Results 41 to 50 of about 805 (182)
Annealing effects of 850 nm vertical-cavity surface-emitting lasers after proton irradiation
Heliyon, 2022 A long-term annealing experiment was performed using 850 nm vertical-cavity surface-emitting lasers (VCSELs) irradiated with 10 MeV protons. Static parameters such as the threshold current, slope efficiency, and light output power were tested using ...
Jiawei Chen +5 more
doaj +1 more source
Recent Developments in Deep‐Ultraviolet Flat Optics
Nanophotonics, Volume 15, Issue 10, 27 May 2026.Deep‐ultraviolet flat optics (DUVFO) is emerging as a key platform for next‐generation photonics, enabling advanced functionalities beyond conventional DUV optics. This review outlines materials, devices, and system advances, highlighting wide‐bandgap platforms, while identifying key challenges in dispersion control, characterization, and wafer‐scale ...
Omar A. M. Abdelraouf +2 more
wiley +1 more source
Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control
Advanced Functional Materials, Volume 36, Issue 41, 21 May 2026.A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong +7 more
wiley +1 more source
Multimode vertical-cavity surface-emitting lasers under spin injection [PDF]
APL PhotonicsRecent research revealed that single-mode vertical-cavity surface-emitting lasers under spin injection (spin-VCSELs) have the potential to revolutionize laser technology for short-haul optical communications. While previous studies have focused solely on
Uliana Diiankova +6 more
doaj +1 more source
Photonics, 2023 The current progress of energy-efficient high-speed VCSELs based on GaAs substrates is presented. Novel approaches for the design of VCSELs are presented, potentially leading to larger bandwidth bit rates and lower power consumption.
Si-Cong Tian +2 more
doaj +1 more source
Wavelength-scale lithographic VCSELs
2021 27th International Semiconductor Laser Conference (ISLC), 2021 We demonstrated high-efficiency room-temperature lasing from lithographic-VCSELs (i.e., Li-VCSELs) with mesa diameters ranging from 0.75 to 2.0 mu m and emission wavelength tunability under continuous-wave optical pumping. The results represent a crucial step towards the realization of electrically pumped small size lasers.
Madigawa, Abdulmalik A., Demir, Abdullah
openaire +2 more sources
Advanced Materials, Volume 38, Issue 26, 8 May 2026.This article explores how the integration of a thin shell, combined with optimized surface chemistry, enables the design of photodiodes based on short‐wave infrared HgTe nanocrystals. These photodiodes achieve an open‐circuit voltage greater than half the optical bandgap, which drastically reduces dark current. The article also explores the integration
Albin Colle +17 more
wiley +1 more source
Interdisciplinary Medicine, Volume 4, Issue 3, May 2026.Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng +10 more
wiley +1 more source
Small Structures, Volume 7, Issue 5, May 2026.The study demonstrates the miniaturization of organic polariton VCSELs based on BSBCz. Using ultra‐thin shadow masks, isolated microcavities as small as 5 µm are fabricated. These devices achieved record‐low lasing fluences (0.21 µJ/cm2), far below reference devices.
Julia Witt +5 more
wiley +1 more source
Dynamics of mutually coupled VCSELs [PDF]
SPIE Proceedings, 2004 Peer ...
Vicente, Raúl, Mirasso, Claudio R.
openaire +2 more sources