Results 201 to 210 of about 297,618 (272)

THz Field Induced Second Harmonic Generation in Epsilon Near Zero Indium Tin Oxide Thin Films. [PDF]

Nano Lett
McDonnell C, Carletti L, Vincenti MA, Della Valle G, De Angelis C, Celebrano M, Ellenbogen T.   +6 more
europepmc   +1 more source

High‐Transmission Mid‐Infrared Bandpass Filters using Hybrid Metal‐Dielectric Metasurfaces for CO2 Sensing

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This article presents a hybrid metal‐dielectric metasurface in transmission mode for mid‐infrared (MIR) spectroscopy. Composed of germanium on aluminium cylinders atop a calcium fluoride substrate, the metasurface achieves 80% transmission efficiency at λ = 2.6 µm with a narrow full‐width‐half‐maximum of 0.4 µm.
Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson   +5 more
wiley   +1 more source

Full complex amplitude control of second-harmonic generation via electrically tunable intersubband polaritonic metasurfaces. [PDF]

Sci Adv
Yu J, Kim J, Chung H, Son J, Boehm G, Belkin MA, Lee J.   +6 more
europepmc   +1 more source

Unveiling Ultrafast Spin‐Valley Dynamics and Phonon‐Mediated Charge Transfer in MoSe2/WSe2 Heterostructures

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study reveals the potential to manipulate spin‐valley polarization dynamics in MoSe2/WSe2 heterostructures by quantifying different scattering processes following selective photoexcitation. The results show that these heterostructures enable ultrafast valley‐selective charge transfer, with phonon scattering playing a significant role in the ...
Julian Wagner, Robin Bernhardt, Lukas Rieland, Omar Abdul‐Aziz, Qiuyang Li, Xiaoyang Zhu, Stefano Dal Conte, Giulio Cerullo, Paul H. M. van Loosdrecht, Hamoon Hedayat   +9 more
wiley   +1 more source

Coherent manipulation of second-harmonic generation via terahertz-field mediated phonon-polariton in zinc oxide. [PDF]

Nat Commun
Fang Y, Hao J, Sang J, Gao J, Song L, Tian Y, Li R.   +6 more
europepmc   +1 more source

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song, Mohan Wang, Frank P. Payne, Patrick S. Salter, Tongyu Liu, Steve J. Elston, Martin J. Booth, Stephen M. Morris, Julian A. J. Fells   +8 more
wiley   +1 more source

Spin-chirality-driven second-harmonic generation in two-dimensional magnet CrSBr. [PDF]

Sci Adv
Wu D, Xu Y, Ye M, Duan W.
europepmc   +1 more source

Development of High‐Performance Multilayer Monochromators

Advanced Optical Materials, EarlyView.
Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong, Arindam Majhi, Wai Jue Tan, Vishal Dhamgaye, Riley Shurvinton, Paresh Pradhan, Igor Dolbnya, Lucia Alianelli, Chris Bowen, Alexander J. G. Lunt, Hongchang Wang, Kawal Sawhney   +11 more
wiley   +1 more source

Flexible Organic Crystalline Fibers and Loops with Strong Second Harmonic Generation. [PDF]

J Am Chem Soc
Lin J, Tang S, Li L, Fang L, Zeng Q, Sun G, Wu S, Naumov P, Gong J.   +8 more
europepmc   +1 more source