Results 171 to 180 of about 9,926 (249)

Efficient and Tunable Narrowband Second‐Harmonic Generation by a Large‐Area Etchless Lithium Niobate Metasurface

Laser &Photonics Reviews, EarlyView.
An etchless lithium niobate (LN) metasurface with a slanted periodic TiO2 grating enables efficient and narrowband second‐harmonic generation (SHG) thanks to the light confinement in the LN film granted by quasi‐bound‐state‐in‐the‐continuum (q‐BIC) modes.
Yaping Hou, Yigong Luan, Yu Fan, Alfonso Nardi, Attilio Zilli, Bobo Du, Jinyou Shao, Marco Finazzi, Chunhui Wang, Lei Zhang, Michele Celebrano   +10 more
wiley   +1 more source

Robust single-mode laser via merging bound state in the continuum. [PDF]

Light Sci Appl
Peng K, Moon J, Meng Y, Goudarzi K, Li W, Gu Q, Bao W.   +6 more
europepmc   +1 more source

Predicting Statistical Signatures of Collective Emission in Disordered Color Center Ensembles

Laser &Photonics Reviews, EarlyView.
We present an efficient simulation framework for modeling collective emission in disordered ensembles of quantum emitters. The low computational complexity enables large‐scale Monte Carlo simulations. Applied to SiV−${\rm SiV}^{-}$ clusters, it predicts thresholded superradiant bursts set by emitter number and quantum efficiency, as well as interaction‐
Qingyi Zhou, Wenxin Wu, Maryam Zahedian, Zongfu Yu, Jennifer T. Choy   +4 more
wiley   +1 more source

Self-induced superradiant masing. [PDF]

Nat Phys
Kersten W, de Zordo N, Diekmann O, Redchenko ES, Kanagin AN, Angerer A, Munro WJ, Nemoto K, Mazets IE, Rotter S, Pohl T, Schmiedmayer J.   +11 more
europepmc   +1 more source

Intrinsically Design‐Rule‐Compliant Nanophotonic Inverse Design via Learned Generative Manifolds

Laser &Photonics Reviews, EarlyView.
A generative reparameterization framework for nanophotonic inverse design is introduced, restricting optimization to a learned manifold of design‐rule‐compliant geometries. Unlike conventional penalty‐based approaches, fabrication constraints are encoded intrinsically within the design representation.
Bahrem Serhat Danis, Demet Baldan Desdemir, Enes Akcakoca, Zeynep Ipek Yanmaz, Gulzade Polat, Ahmet Onur Dasdemir, Aytug Aydogan, Abdullah Magden, Emir Salih Magden   +8 more
wiley   +1 more source

Pure Gaussian Apodisation Reduces Integral Crosstalk Sensitivity in Quantitative NMR

Magnetic Resonance in Chemistry, EarlyView.
Exponential apodisation redistributes peak area away from its centre, which increases crosstalk with neighbouring peaks and reduces integral trueness when integrating between defined regions. A pure Gaussian apodisation limits wing growth: Crosstalk between peaks is not worsened, and trueness is conserved during integration.
A. Flook, C. S. Raman, G. C. Lloyd‐Jones   +2 more
wiley   +1 more source

Simultaneous determination of free and total metabolite concentrations in proteinaceous specimens by 1D ¹H CPMG NMR. [PDF]

Cell Rep Methods
Reindl A, Samol C, Haerteis S, Zacharias HU, Dettmer K, Oefner PJ, Gronwald W.   +6 more
europepmc   +1 more source

CEEN: A Control Software for Coupled Electrochemistry, EPR, and NMR for Redox Flow Battery and Electrosynthesis Research

Magnetic Resonance in Chemistry, EarlyView.
We present CEEN: a Python‐based control software for coupled electrochemistry, EPR, and NMR for redox flow battery (RFB) and electrosynthesis research. We demonstrate CEEN through practical applications relevant to aqueous organic and inorganic RFB and electrochemical synthesis research. The same setup can be readily used to study any (electrochemical)
Vince Elter, Noël de Kler, Giu A. Silva Testa, Zhiyu Zhu, Federico Paruzzo, Simon Bruderer, Evan Wenbo Zhao   +6 more
wiley   +1 more source

Automated Analysis for MR Coil QA. [PDF]

J Appl Clin Med Phys
Paliwal B, Bal A, Kodali L, Tewatia D, Tanumihardjo I.   +4 more
europepmc   +1 more source