Results 31 to 40 of about 659 (179)

Effects of different current confinement layers in GaN-based VCSELs

AIP Advances, 2023
For GaN-based vertical-cavity surface-emitting lasers (VCSELs), a suitable current confinement layer is essential for high-performance devices. The effect of different current confinement layers, including SiO2, AlN, and diamond, on the performance of ...
Yan-Hui Chen, Yang Mei, Zhong-Ming Zheng, Rong-Bin Xu, Ya-Chao Wang, Lei-Ying Ying, Zhi-Wei Zheng, Hao Long, Yi-Kun Bu, Bao-Ping Zhang   +9 more
doaj   +1 more source

The Vertical-Cavity Surface Emitting Laser (VCSEL) and Electrical Access Contribution [PDF]

, 2011
This chapter aims at highlighting the influence of the electrical access of different kinds of Vertical-Cavity Surface-Emitting Laser (VCSEL) (Rissons & Mollier, 2009). By presenting an overview of electrical equivalent circuit modeling and characterization for the VCSEL chip, based on the Scattering parameters, an overview of the VCSEL performance is ...
Angelique Rissons, Jean-Claude Mollier
openaire   +1 more source

Optical glucose monitoring using vertical cavity surface emitting lasers (VCSELs) [PDF]

SPIE Proceedings, 2009
Diabetes Mellitus is a common chronic disease that has become a public health issue. Continuous glucose monitoring improves patient health by stabilizing the glucose levels. Optical methods are one of the painless and promising methods that can be used for blood glucose predictions.
Fard, Sahba Talebi, Hofmann, Werner, Fard, Pouria Talebi, Kwok, Ezra, Amann, Markus-Christian, Chrostowski, Lukas   +5 more
openaire   +1 more source

650-nm vertical-cavity surface-emitting lasers (VCSELs) for plastic optical fiber communication

Optics Express, 2023
Vertical-cavity surface-emitting lasers (VCSELs) are widely used as light sources for high-speed communications. This is mainly due to their economical cost, high bandwidth, and scalability. However, efficient red VCSELs with emissions at 650 nm are required for plastic optical fiber (POF) technology because of the low-loss transmission window centered
Nawal Almaymoni, Omar Alkhazragi, Chun Hong Kang, Georgian Melinte, Tien Khee Ng, Boon S. Ooi   +5 more
openaire   +3 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Time-Delay Signature Suppression of Polarization-Resolved Chaos Outputs from Two Mutually Coupled VCSELs

IEEE Photonics Journal, 2013
Time-delay (TD) signature performances of polarization-resolved chaos outputs from two mutually coupled vertical-cavity surface-emitting lasers (MC VCSELs) are investigated through detailed simulations by means of self-correlation function (SF) and ...
Zhu-Qiang Zhong, Zheng-Mao Wu, Jia-Gui Wu, Guang-Qiong Xia   +3 more
doaj   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Submonolayer Quantum Dots for High Speed Surface Emitting Lasers

Nanoscale Research Letters, 2007
We report on progress in growth and applications of submonolayer (SML) quantum dots (QDs) in high-speed vertical-cavity surface-emitting lasers (VCSELs).
Zakharov ND, Werner P, Bimberg D, Hopfer F, Mutig A, Shchukin VA, Savel’ev AV, Fiol G, Stock E, Eisele H, Dähne M, Mikhrin SS, Kovsh AR, Gerthsen D, Fischer U, Litvinov D, Rosenauer A, Ledentsov NN   +17 more
doaj   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, EarlyView.
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, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

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

Advanced 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, Gwuidong Ryu, Kisoo Kim, Feng Xu, Won Gu Lee   +4 more
wiley   +1 more source