Results 71 to 80 of about 5,833,148 (164)

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

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, Jiongyi Yan, Dick F. Firdaus, Amy Jin, Jiaxuan Li, Shushan Wang, Ran Chen, Xudong Tao, Zehao Ji, Yi Liu, Zichen Wang, Christos Margadji, Mark Kotter, J. Axel Zeitler, George G. Malliaras, Ronan Daly, Andrew Gleadall, Sebastian W. Pattinson   +17 more
wiley   +1 more source

Progress on single mode VCSELs for data- and tele-communications

, 2022
Paper 82760KSingle mode (SM) 850 nm vertical-cavity surface-emitting lasers (VCSELs) are suitable for error-free (bit error ratio <10 -12) data transmission at 17-25 Gb/s at distances ~2-0.6 km over 50m-core multimode fiber (MMF).
Kuyt, G., Caspar, C., Molin, D., Lott, J.A., Moser, P., Payusov, A.S., Blokhin, S.A., Freund, R., Fiol, G., Kropp, J.-R., Amezcua, A., Novikov, I.I., Karachinsky, L.Ya., Bimberg, D., Maleev, N.A., Shchukin, V.A., Ledentsov, N.N.   +16 more
core   +1 more source

VCSEL-Based Light Sources—Scalability Challenges for VCSEL-Based Multi-100- Gb/s Systems

IEEE Photonics Journal, 2012
Future high-performance computers require optical interconnects with aggregated Exa-Byte/s data transport. Densely packed arrays of vertical-cavity surface-emitting lasers (VCSELs) might present the only feasible technical solution.
Werner Hofmann, Dieter Bimberg
doaj   +1 more source

Optical Coherence Tomography for High‐Precision Industrial Inspection in Industry 4.0: Advances, Challenges, and Future Trends

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, Sm Abu Saleah, Daewoon Seong, Naresh Kumar Ravichandran, Sangyeob Han, Ruchire Eranga Wijesinghe, Mansik Jeon, Jeehyun Kim   +7 more
wiley   +1 more source

Simulation of Modal Control of Metal Mode-Filtered Vertical-Cavity Surface-Emitting Laser

Sensors
In this study, a novel metal-dielectric film mode filter structure that can flexibly regulate the transverse mode inside vertical-cavity surface-emitting lasers (VCSELs) is proposed.
Jingfei Mu, Yinli Zhou, Chao Chen, Xing Zhang, Jianwei Zhang, Tianjiao Liu, Zhuo Zhang, Yuehui Xu, Gaohui Yuan, Jiye Zhang, Yongqiang Ning, Lijun Wang   +11 more
doaj   +1 more source

Next‐Generation Wearable Optical Sensors for Personalized Health and Point‐of‐Care Diagnostics—A Systematic Review

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, Helena Torné‐Morató, Guolong Zhang, Youssef Amin, Mahdieh Pabast, Nidhi Sharma, Sailing He, Manash R. Das, Pier Paolo Pompa   +8 more
wiley   +1 more source

Development of high-speed directly-modulated DFB and DBR lasers with surface gratings [PDF]

, 2011
The conventional distributed feedback and distributed Bragg reflector edge-emitting lasers employ buried gratings, which require two or more epitaxial growth steps.
M. Dumitrescu, Sek, G., REITHMAIER J. P., EISENSTEIN G., KARINEN J., P. Bardella, P. Melanen, MELANEN P., GREADY D., SEK G., G. Sek, O. Parillaud, S. Afzal, Laakso, A., J. Telkkälä, Reithmaier J.-P., Afzal, S., P. Uusimaa, Montrosset, Ivo, D. Gready, PARILLAUD O., Melanen, P., Bardella, Paolo, Vallone, Marco Ernesto, VIHERIÄLÄ J., KAMP M., Telkkälä, J., J.-P. Reithmaier, J. Karinen, Parillaud, O., Dumitrescu, M., DUMITRESCU M., Gready, D., M. Vallone, M. Krakowski, G. Eisenstein, Uusimaa, P., Viheriälä, J., A. Laakso, I. Montrosset, Eisenstein, G., J. Viheriälä, Karinen, J., AFZAL S., LAAKSO A., TELKKÄLÄ J., UUSIMAA P., Kamp, M., M. Kamp   +48 more
core   +1 more source

Stable Propagation of Inhibited Spiking Dynamics in Vertical-Cavity Surface-Emitting Lasers for Neuromorphic Photonic Networks

IEEE Access, 2018
We investigate experimentally and theoretically the communication of inhibited spiking dynamics between two interlinked photonic neurons based upon the vertical-cavity surface-emitting lasers (VCSELs).
Tao Deng, Joshua Robertson, Zheng-Mao Wu, Guang-Qiong Xia, Xiao-Dong Lin, Xi Tang, Zhi-Jing Wang, Antonio Hurtado   +7 more
doaj   +1 more source

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, Lenstra, D., Green, K., Lenstra, D, Krauskopf, B   +4 more
core  

Bifurcation analysis of a multi-transverse-mode VCSEL [PDF]

, 2008
We study the behaviour of a multi-transverse-mode vertical-cavity surface-emitting laser subject to optical feedback in which the optical modes are coupled through the external round-trip. Starting from a delayed partial differential equation description
Green, K, Green, K., Krauskopf, B
core   +1 more source