Results 131 to 140 of about 58,658 (249)

Two‐Dimensional Reconfigurable Photodiode for In‐Sensor Color Filtering and Spectral Logic

Advanced Materials, Volume 38, Issue 26, 8 May 2026.
By harnessing the photodoping of different aggregates, the device exhibits wavelength‐dependent volatile‐to‐nonvolatile photoresponses that can be reconfigured via bias modulation. This enables in‐sensor color filtering and spectral‐encrypted information processing, eliminating reliance on external optical filters or post‐processing algorithms ...
Xiaokun Guo, Yaoqiang Zhou, Yufeng Zhang, Xinyi Zhao, Yue Pang, Lei Tong, Zhipei Sun, Jianbin Xu   +7 more
wiley   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

A Comprehensive Review of Traditional and Machine Learning‐Assisted Diffuse Optical Spectroscopy and Imaging Techniques for Dermatological Applications

Advanced Photonics Research, Volume 7, Issue 5, May 2026.
This review critically examines clinical studies on both conventional and machine learning (ML)‐integrated diffuse optical spectroscopy and imaging methods for dermatological applications, with a primary focus on the past decade and inclusion of earlier foundational work where appropriate.
Iftak Hussain, Li Xiuting, Randall Ang Jie, Keertana Vinod Ram, Mark Teo Ju Teng, Valerie Xinhui Teo, Malini Olivo, U. S. Dinish   +7 more
wiley   +1 more source

Ultrafast Control of Coherent Acoustic Lattice Dynamics in the Transition Metal Dichalcogenide Alloy WSSe

Advanced Physics Research, Volume 5, Issue 5, May 2026.
Coherent acoustic phonons are generated and optically controlled in bulk WSSe alloy samples using ultrafast spectroscopy. The alloy exhibits a strong coherent acoustic response, which is not an intermediate state between WS? and WSe?. Instead, a much more complex mechanism is proposed.
Sergio I. Rey, Martin J. Cross, Malte L. Welsch, Frederik Schröder, William V. Carstensen, Oleg Semyonov, Daphne M. Dekker, Nikolai Orlov, Binbin Zhou, Nicolas Stenger, Peter U. Jepsen, Edmund J. R. Kelleher   +11 more
wiley   +1 more source

Wavelength Tunable Pulsed Lasers Enabled by a Versatile Metafiber Functioning as Both Saturable Absorber and Filter

Advanced Science
Wavelength‐tunable pulsed lasers have garnered significant research interest due to their critical role in applications requiring precise spectral matching, such as wavelength‐division multiplexing and spectroscopic analysis.
Bo Fu, Chenxi Zhang, Zhouqi Zhang, Zuxi Ouyang, Gang Wang, Xiuhan Jing, Weilin Chen, Lei Zhang, Min Qiu   +8 more
doaj   +1 more source

Quantifying Optical Disorder in CsFaPb(Br,I)3 Perovskites via Urbach Energy Analysis Using OPAL2 Fresnel‐Based Simulations

Advanced Physics Research, Volume 5, Issue 5, May 2026.
ABSTRACT This study examines light‐matter interactions in CsFAPb(Br, I)3 perovskite thin films by analyzing their absorption, reflection, and emission properties using Fresnel‐based OPAL2 simulations. The optical spectra show sharp absorption edges at 1.55 – 1.60 eV for CH3NH3PbI3 and triple‐cation perovskites, which blue‐shift to ∼1.8 eV with ...
Miller Shatsala, Celline Awino, Maxwell Mageto, Hussein Golicha   +3 more
wiley   +1 more source

Dual‐Wavelength Switchable Focusing via a Fabry‐Pérot Resonance‐Enabled Hydrogel Metalens

Advanced Physics Research, Volume 5, Issue 5, May 2026.
A hydrogel metalens is demonstrated for dual‐wavelength switchable focusing based on Fabry‐Pérot resonance. Under the low relative humidity, the metalens exclusively focuses light with a resonance wavelength of 470 nm and directly reflects light of other wavelengths.
Xiaofeng Dong, Yufeng Zha, Tianyu Liu, Qijun Yan, Leyi Ren, Zhipeng Qian, Jiao Tang, Qianqian Zhou, Degao Xu, Wen‐xing Yang, Chenjie Dai   +10 more
wiley   +1 more source

Brillouin Scattering Observations of Elastic Behavior Across the Post‐Stishovite Transition Under Deviatoric Stress in Polycrystalline Al‐Bearing Stishovite

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Stishovite (SiO2), a key phase in subducted mid‐ocean ridge basalt (MORB), undergoes a ferroelastic transition to a CaCl2‐type structure, potentially explaining localized shear wave velocity (VS) anomalies in the shallow to mid‐lower mantle. However, the phase boundary determining this transition remains debated.
Ewa Krymarys, Motohiko Murakami, Pinku Saha, Christian Liebske, Julien Allaz, Koutaro Hikosaka, Kenji Ohta   +6 more
wiley   +1 more source

Ultrathin Perovskite Solar Cells With γ‐Ray Tolerance Enabled by a Flexible Radiation‐Resistant Plastic Substrate

Solar RRL, Volume 10, Issue 8, 27 April 2026.
This work demonstrates ultrathin, flexible perovskite solar cells exhibiting exceptional gamma‐ray radiation tolerance. By integrating a radiation‐tolerant perovskite solar cell with an ultrathin parylene/SU‐8 plastic substrate, the cells maintain power conversion efficiencies of 15.0% after severe total ionizing dose conditions up to 890 krad (Si ...
Hiroaki Jinno, Tomoyuki Yokota, Dou Zhao, Daisuke Kobayashi, Takahiro Makino, Akinori Takeyama   +5 more
wiley   +1 more source