Results 171 to 180 of about 2,474,049 (303)

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Identifying the principal mechanism of star formation feedback. [PDF]

Sci Adv
Li C, Li R, Qiu K, Krco M, Li D, Wang H, Lyu X, Duan Y, Fang M, Chen X, Wang L, Feng H, Zhang S, Zhang M, Zhang S, Cao Y, Wang Y, Gong Y, Du F, Chen Z, Su Y, Ma Y, Xing Y, Zheng Y, Zhang T, Niu S, Li C, Liu J, Zhang Z, Guo Y.   +29 more
europepmc   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source

Breaking the 100-nm resolution barrier with multiphoton microscopy using image scanning microscopy and optical fluctuation imaging. [PDF]

J Biomed Opt
Classen A, Fernández A, Dharmasiri A, Rodriguez C, Srinivasan R, Zheltikov AM, Agarwal GS, Verhoef AJ.   +7 more
europepmc   +1 more source

Reconfigurable Geometric Phase Matching by Multilayered Nonlinear Thin‐Film Crystals

Laser &Photonics Reviews, EarlyView.
The concept of geometric phase matching is demonstrated as a dynamically reconfigurable approach for tunable nonlinear wave mixing in multilayered nonlinear thin‐film crystals. Experimental results reveal full modulation in a bilayer structure and near‐perfect spin‐selective phase matching of second‐harmonic generation in an eight‐layer configuration ...
Danielle Ben‐Haim, Mai Tal, Xiaoxi Xu, Tal Ellenbogen   +3 more
wiley   +1 more source

From stars to molecules: AI guided device-agnostic super-resolution imaging. [PDF]

Nat Commun
Vašinka D, Juráň F, Běhal J, Ježek M.   +3 more
europepmc   +1 more source

Multispectral Mid‐Infrared Imaging With Incoherent Light via Adiabatic Upconversion

Laser &Photonics Reviews, EarlyView.
We demonstrate room‐temperature broadband MIR imaging based on adiabatic frequency upconversion, driven by a Q‐switched pump laser and incoherent illumination. The small‐foot‐print system upconverts the spectral range to the visible domain, without scanning, thermal control and with spatial resolution below 20μm$20\mathrm{\mu}\mathrm{m}$.
Daniel Beitner, Ziv Abelson, Eyal Hollander, Omri Meron, Haim Suchowski   +4 more
wiley   +1 more source

Glass-like anomalies and unconventional thermoelectric transport in chimney ladder crystals. [PDF]

Nat Commun
Mandyam SV, Dong W, Yan X, Zhao B, Wu Y, Su C, Duverger-Nédellec E, Lin J, Xia T, Zhao Z, Chen X, Yang J, Ma J, Xing H, Grosche FM, Baggioli M.   +15 more
europepmc   +1 more source

Wavefront Shaping for Optimal Extinction of Focused Light by Individual Nanoscatterers

Laser &Photonics Reviews, EarlyView.
Wavefront shaping enables near‐complete optical extinction by nanoscatterers separated from a planar reflector. Time‐reversed emission profiles provide optimal illumination conditions, yielding 70% extinction from a single plasmonic nanoparticle and up to 90% from sub‐wavelength nanoparticle clusters, offering a promising route to efficient in‐ and out‐
Nick Feldman, Joris Pals, Arie J. den Boef, F. Javier García de Abajo, Lyubov V. Amitonova, A. Femius Koenderink   +5 more
wiley   +1 more source

Evidence of competing ground states between fractional Chern insulator and antiferromagnetism in moiré MoTe₂. [PDF]

Nat Commun
Chang X, Liu F, Xu F, Xu C, Xiao J, Sun Z, Jiao P, Zhang Y, Wang S, Shen B, He R, Watanabe K, Taniguchi T, Zhong R, Jia J, Shi Z, Liu X, Zhang Y, Qian D, Li T, Jiang S.   +20 more
europepmc   +1 more source