Results 221 to 230 of about 1,429,782 (326)

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Lens Antenna Arrays for THz Superconducting HEB Mixers: A Review and a Metasurface Coupling Approach. [PDF]

Sensors (Basel)
Gan Y, Peng R, Feng S, Mu M, Wang Q.
europepmc   +1 more source

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

Detection and imaging of chemicals and hidden explosives using terahertz time-domain spectroscopy and deep learning. [PDF]

Light Sci Appl
Jiang X, Li Y, Li Y, Shen CY, Ozcan A, Jarrahi M.   +5 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

Parallel Multi‐Target Detection for Quantum LiDAR

Laser &Photonics Reviews, EarlyView.
Parallel multi‐target detection is achieved in quantum LiDAR with a single‐pixel quantum readout. Direction and distance information are extracted together, allowing multiple objects to be distinguished under noisy low‐light conditions and pointing to a new strategy for scan‐free quantum remote sensing.
Junyeop Kim, Dongjin Lee, Woncheol Shin, Yeoulheon Seong, Heedeuk Shin   +4 more
wiley   +1 more source

Carbon nanotube terahertz detector

Carbon nanotube terahertz detector
identifier:oai:t2r2.star.titech.ac.jp ...
openaire   +1 more source

Single-photon detection in few-layer NbSe₂ superconducting nanowires. [PDF]

Nat Commun
Zugliani L, Palermo A, Scaparra B, Patra A, Wietschorke F, Metuh P, Paralikis A, De Fazio D, Kastl C, Flaschmann R, Munkhbat B, Müller K, Finley JJ, Barbone M.   +13 more
europepmc   +1 more source

Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets

Laser &Photonics Reviews, EarlyView.
Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier, Khaleda Mallick, Abhinand Venugopalan, Milind Bagul, Gouri Krishnan, Thomas Schneider   +5 more
wiley   +1 more source

Dirac Surface-State Driven Broad Spectral Band Low Quantum Energy Photoresponse in Quaternary Topological BiSbSe₂Te. [PDF]

Adv Sci (Weinh)
Zhang T, Tong J, Zhang J, Yu P, Luo H, Yan L, Yang B, Huang T, Ran J, Chen Y, Zhou L, Chen X, Dai N, Wang J, Chu J.   +14 more
europepmc   +1 more source