Results 51 to 60 of about 659 (179)

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

Transverse-mode control in VCSELs by electrically tunable liquid crystal mode filters

AIP Advances, 2021
A distinctive method is used to achieve transverse-mode control by building and integrating a tunable liquid crystal (LC) mode filter on top of traditional vertical-cavity surface-emitting lasers (VCSELs).
Hongyan Shao, Baolu Guan, Lijie Cui, Ning Cui, Yang Zhang, Yiping Zeng   +5 more
doaj   +1 more source

Hexagonal transverse-coupled-cavity VCSEL redefining the high-speed lasers

Nanophotonics, 2020
Vertical-cavity surface-emitting lasers (VCSELs) have emerged as a vital approach for realizing energy-efficient and high-speed optical interconnects in the data centers and supercomputers.
Heidari Elham, Dalir Hamed, Ahmed Moustafa, Sorger Volker J., Chen Ray T.   +4 more
doaj   +1 more source

Deep‐UV Photonic Crystal Surface‐Emitting Lasers

Laser &Photonics Reviews, Volume 20, Issue 6, 18 March 2026.
The first deep‐UV photonic crystal surface‐emitting lasers (PCSELs) at 279 nm are demonstrated under pulsed optical pumping. The PCSELs have single‐mode emission with a 17‐pm linewidth and a divergence angle of less than 1∘$^{\circ }$. Experimental results highlight the impact of the filling factor choice on the lasing mode and the far‐field emission ...
Doğukan Apaydın, Hjalmar Andersson, Lukas Uhlig, Sarina Graupeter, Joachim Ciers, Giulia Cardinali, Erik Strandberg, Tim Wernicke, Michael Kneissl, Ulrich Theodor Schwarz, Philippe Tassin, Åsa Haglund   +11 more
wiley   +1 more source

Application of nanophotonics to the next generation of surface-emitting lasers

Nanophotonics, 2017
Novel trends and concepts in the design and fabrication of vertical cavity surface-emitting lasers (VCSELs) and their integration in optical networks and implementation in integrated photonics applications are discussed.
Ledentsov Nikolay N., Ledentsov Nikolay, Agustin Mikel, Kropp Joerg-R., Shchukin Vitaly A.   +4 more
doaj   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, Volume 7, Issue 2, February 2026.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +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

A Versatile Materials Class for Solution‐Processed Optics and Photonics Based On Titanium Oxide Hydrates and Polyalcohols: A Perspective

Advanced Materials, Volume 38, Issue 3, 13 January 2026.
A new, solution‐processable class of optical materials based on molecular hybrids of metal oxide hydrates and commodity polymers is discussed here, including their synthesis, processing into thin films, patterning, and photonic structures realized to date.
Victoria Quirós‐Cordero, Alex H. Balzer, Stefan Bachevillier, Nissa Watkins, António Fernandes Ferreira, Joseph Mushyakov, Mehul Dhoot, Carlos Silva‐Acuña, Paul N. Stavrinou, Natalie Stingelin   +9 more
wiley   +1 more source

Group Delay Dispersion Measurements on Mid‐Infrared Supermirrors

Advanced Optical Materials, Volume 14, Issue 3, 19 January 2026.
Group delay dispersion of novel semiconductor‐based optics is measured in the mid‐infrared spectral range (2.5 to 4.8 μm$\rm \umu{\rm m}$). Comparisons are made between simulations, measurements conducted with a home‐built white light interferometer, and measurements performed with a commercially available FTIR.
Ulrich Galander, Maximilian Prinz, Lukas W. Perner, Oliver H. Heckl   +3 more
wiley   +1 more source

Narrow Linewidth Spontaneous and Lasing Emissions from Open‐Access Microcavity‐Embedded Perovskite Quantum Dots

Advanced Optical Materials, Volume 14, Issue 1, 9 January 2026.
Continuous‐wave lasing from a small number of perovskite quantum dots is achieved by coupling their photoluminescence to open‐access curved dielectric cavities. This geometry confines their emission into a single optical mode, sharply narrowing linewidths in both spontaneous and lasing regimes.
Sunny Tiwari, Amit R. Dhawan, SangHyuk Park, Sangeun Cho, Gareth S. Jones, Jason M. Smith, Robert A Taylor, Tristan Farrow   +7 more
wiley   +1 more source