Results 51 to 60 of about 1,346 (183)
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
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
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
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
A 56 Gb/s PAM4 VCSEL-Based LiFi Transmission With Two-Stage Injection-Locked Technique
IEEE Photonics Journal, 2017 A 56 Gb/s four-level pulse amplitude modulation (PAM4) light-based WiFi (LiFi) transmission based on a 680-nm/5.4-GHz vertical-cavity surface-emitting laser (VCSEL) with a two-stage injection-locked technique is proposed and demonstrated ...
Hai-Han Lu +6 more
doaj +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
Advanced Functional Materials, Volume 36, Issue 32, 20 April 2026.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source
Dynamics of mutually coupled VCSELs [PDF]
SPIE Proceedings, 2004 Peer ...
Vicente, Raúl, Mirasso, Claudio R.
openaire +2 more sources
Laser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.This review examines how optical coherence tomography transforms industrial inspection by delivering real‐time, micrometer‐resolution, depth‐resolved imaging. It surveys applications across display manufacturing, thin films, microelectronics, laser processing, and coatings, evaluates performance against conventional techniques, and highlights emerging ...
Nipun Shantha Kahatapitiya +7 more
wiley +1 more source
Advanced Healthcare Materials, Volume 15, Issue 10, 13 March 2026.This review article presents a comprehensive and integrated overview of wearable optical sensors, systematically bridging advanced functional materials with fundamental optical sensing mechanisms. It further highlights their diverse applications across healthcare, fitness monitoring, environmental surveillance, and food safety.
Rituparna Duarah +8 more
wiley +1 more source