Results 131 to 140 of about 35,818 (242)

Anomalous Valley Zeeman Splitting Induced by In‐plane Magnetic Fields in a Mo0.7W0.3Se2 Monolayer

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
In‐plane magnetic fields produce an anomalous valley Zeeman splitting in a Mo0.7W0.3Se2${\rm Mo}_{0.7}{\rm W}_{0.3}{\rm Se}_2$ monolayer – a response forbidden in binary transition‐metal dichalcogenides. Photoluminescence g‐factors of ‐6 to ‐7 exceed resonant scattering values by a factor of four, revealing a many‐body origin.
Janina J. Schindler, Joanna Jadczak, Ana Senkić, Leszek Bryja, Ursula Wurstbauer, Marc Aßmann, Jörg Debus   +6 more
wiley   +1 more source

Continuously tunable narrow-linewidth fiber lasers

, 2020
Narrow linewidth tunable fiber lasers have become an important tool in research and in-field applications thanks to their high beam quality, great spectral performance, compact structure and environmental robustness. Many methods have been introduced and developed throughout decades to fulfill the need for rapid wavelength adjustment of these fiber ...
openaire   +1 more source

Cationic Lattice Coupling Enables Efficient FAPbI3 Perovskite Solar Cells

Small Structures, Volume 7, Issue 4, April 2026.
TPPI with a rigid, asymmetric phosphonium framework orient stably at the grain boundaries and interfaces of PSCs. It polarizes FA+, reinforces hydrogen bonds, restricts FA+ rotation to stabilize the α‐phase, and enhances cation–lattice coupling to form large polarons for defect screening, thereby boosting the power conversion efficiency (PCE) and ...
Yanju Wang, Yue Zhang, Kang Wei, Hong Li, Mengfei Xue, Yongqiang Ji, Yuzhuo Zhang, Xiaoyu Yang, Xinqiang Wang, Yifan Zheng, Yuchuan Shao   +10 more
wiley   +1 more source

Narrow-linewidth and tunable fiber lasers

, 1993
1. Introduction 2. Line-narrowed fiber laser devices Integral fiber reflective Bragg grating lasers Intra-cavity etalon laser 3. Tunable, line narrowed fiber laser devices Ring lasers using wavelength selective couplers Tunable lasers using bulk-optic components a) Mechanical tuning b) Electronic tuning 4.
openaire   +2 more sources

Merging van der Waals Materials and Optical Metasurfaces for Cavity Quantum Electrodynamics

Nanophotonics, Volume 15, Issue 5, 16 March 2026.
Flat optical metasurfaces supporting quasi‐bound states in the continuum (qBIC) enable cavity‐like, high‐Q resonances in ultrathin nanostructures. This perspective explores the emergence of cavity quantum electrodynamics in qBIC metasurfaces, specifically those made from ultrathin van der Waals nanostructures, where cavities and emitters are seamlessly
Luca Sortino, Andreas Tittl, Stefan A. Maier   +2 more
wiley   +1 more source

Super‐Resolution Imaging With Fluorotellurite Glass Microspheres

Nanophotonics, Volume 15, Issue 5, 16 March 2026.
Microsphere lenses made from fluorotellurite glass with a high refractive index and excellent transparency were used to develop a super‐resolution imaging technique and ultramicroscopic objective modules. This approach enables efficient, stable, and precisely controllable imaging with broad potential in life sciences and nanotechnology.
Haonan Zhuo, Shengchuang Bai, Zhouyi Yu, Zhenmin Wang, Zejie Zheng, Yu Zhuang, Yina Jiang, Tianyao Zhang, Hao Li, Lixiang An, Duanduan Wu, Xunsi Wang, Hui Yang, Guoqiang Gu   +13 more
wiley   +1 more source

Between Order and Confusion: Clearing up Structural Misconceptions in Carbon Materials Nomenclature

Angewandte Chemie International Edition, Volume 65, Issue 11, 9 March 2026.
Despite the versatile use of carbon materials, inconsistent terminology and inadequate characterization – especially regarding graphene structures based on sp2‐hybridized carbon atoms – often cause confusion. This perspective clarifies terms like graphite, graphitic carbon, non‐graphitic carbon, and amorphous carbon by aligning IUPAC definitions with X‐
Chantal Glatthaar, Felix Badaczewski, Peter J. Klar, Bernd M. Smarsly   +3 more
wiley   +1 more source

Resonator-enhanced distributed Bragg reflector lasers. [PDF]

Light Sci Appl
Yu D, Geng Z, Huang Y, Tong Y, Xia Y, Liu M, Huang Y, Xiang C.   +7 more
europepmc   +1 more source

Microfiber knot resonator with 10⁷ Q-factor record. [PDF]

Light Sci Appl
Zhou X, Ding Z, Xu F.
europepmc   +1 more source

Visible Brillouin-quadratic microlaser in a high-Q thin-film lithium niobate microdisk. [PDF]

Nat Commun
Luo X, Li C, Huang X, Lin J, Gao R, Yao Y, Qiu Y, Yang Y, Wang L, Yu H, Cheng Y.   +10 more
europepmc   +1 more source