Results 121 to 130 of about 1,026,909 (225)

On-chip stimulated Brillouin scattering

, 2016
We report the first demonstration of on-chip stimulated Brillouin scattering (SBS) with low average power.
Eggleton, Benjamin J, Luther-Davies, Barry, Poulton, Christopher, Madden, Steve, Pant, Ravi, Thevenaz, Luc, MacFarlane, Hannah, Choi, Duk-Yong   +7 more
core   +1 more source

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

Advanced Materials, Volume 38, Issue 52, 16 September 2026.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag, Saugata Sarker, Michael J. Waters, Safdar Imam, Himirkanti Sarkar, Anthony Richardella, James M. Rondinelli, Mercouri G. Kanatzidis, Venkatraman Gopalan   +8 more
wiley   +1 more source

Programmable Elastic Wave Control Via Mechanical‐Acoustic Interaction in Bistable Metamaterials

Advanced Science, Volume 13, Issue 49, 3 September 2026.
A mechanically programmable metamaterial based on mechanical‐acoustic interaction enables reconfigurable elastic wave control through bistable state switching. Spatial encoding of peak and valley states tunes band structures and transmission, achieving low‐frequency vibration suppression, waveguiding, and energy localization.
Yuanyuan Li, Yonghua Yu, Chuanqing Chen, Rui Xu, Yulong He, Xin Li, Ming‐Hui Lu, Yan‐Feng Chen   +7 more
wiley   +1 more source

Hierarchical SixZr1−xMgO Monolithic Heterojunctions for Efficient Photocatalytic Hydrogen Evolution

Advanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Hierarchical SixZr1−x MgO monolithic heterojunctions create intimate interfaces and interconnected pathways that promote light harvesting, charge separation, and reactant transport. The optimized band structure suppresses electron–hole recombination and accelerates proton reduction, delivering efficient photocatalytic hydrogen evolution. These findings
Aminul Islam, Mohammad Mobarak Hossain, M. Azizur R. Khan, Abdulkareem Ghassan Alsultan, Siow Hwa Teo, Mohd Lokman Ibrahim, Anh Tuan Hoang, Mohammad A. Hasnat, Kazi Hamidur Rashid, Apurba Kumar Sarkar, Tarikul Islam   +10 more
wiley   +1 more source

High-power cladding-pumped Raman and erbium-ytterbium doped fibre sources

, 2007
Raman fibres and rare-earth doped silica fibres have been investigated for many years as gain media for the amplification of optical signals in telecommunications thanks to their broad gain bandwidth. They are now widely used for that application.
Codemard, Christophe André
core   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

InfoScience, Volume 3, Issue 3, September 2026.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong, Zhenyu Wang, Xu Li, Guo Tang, Sizhe Wang, Jiyuan Huang, Guochao Wang, Shuhua Yan, Wenzhao Sun   +8 more
wiley   +1 more source

ESA´s Wind Lidar Mission ADM-Aeolus: On-Going Scientific Activities Related to Calibration, Retrieval and Instrument Operation [PDF]

, 2010
The Earth Explorer Atmospheric Dynamics Mission (ADM-Aeolus) of ESA will be the first-ever satellite to provide global observations of wind profiles from space.
Vieitez, M. O., Stoffelen, A., Le Rille, O., Kloe, J., de Kloe, J., Vieitez, M.O., Ubachs, W.M.G., Ubachs, W., van de Water, W., Witschas, B., Ubachs, W.M.G.; id_orcid, Rille, O., Houchi, K., Körnich, H., Straume, A.-G., Schyberg, H., Marseille , G. J., Straume, A.G., Reitebuch, O., Marseille, G.J.   +19 more
core  

Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes

Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano, Jianhao Zhang, David González‐Andrade, Daniele Melati, Eric Cassan, Pavel Cheben, Laurent Vivien, Norberto Daniel Lanzillotti‐Kimura, Carlos Alonso‐Ramos   +8 more
wiley   +1 more source

Shining Light on Quantum Materials: Interplay of Symmetry, Quantum Geometry, and Nonlinear Photocurrents

Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.
Nonlinear photocurrents provide broadband spectroscopic access to quantum materials from terahertz to optical frequencies. Their sensitivity to spin, orbital, chiral, topological, and quantum‐geometric properties enables insights across ferroelectrics, magnetic and two‐dimensional materials, moiré heterostructures, topological flat bands, and light ...
Kurosch Mehrgan, Alexandre Bernard, Christoph Kastl   +2 more
wiley   +1 more source

Large stimulated Brillouin scattering amplification in gases [PDF]

We exploit backward stimulated Brillouin scattering in gases to achieve unprecedented nonlinear optical amplification in fibers. The gain coefficient is 10 times larger than any reported nonlinear gain in gas-filled HC-PCF and 6 times larger than the ...
Thévenaz, Luc, Yang, Fan, Gyger, Flavien   +2 more
core   +1 more source