Results 101 to 110 of about 9,545 (228)
Low contact resistance in epitaxial graphene devices for quantum metrology
AIP Advances, 2015 We investigate Ti/Au contacts to monolayer epitaxial graphene on SiC (0001) for applications in quantum resistance metrology. Using three-terminal measurements in the quantum Hall regime we observed variations in contact resistances ranging from a ...
Tom Yager +10 more
doaj +1 more source
Organic Photodetectors and Sensors for Low‐Light and Infrared Applications
Electron, EarlyView.This mini review highlights recent advances in organic photodetectors and sensors for low‐light and infrared applications, emphasizing molecular design, device architectures, and interface engineering that improve charge transport, detectivity, speed, and spectral selectivity.
Swarup Biswas, Hyeok Kim
wiley +1 more source
Quantum metrology in the finite-sample regime
, 2023 107 (32 + 75) pages, 13 figures, feedback and comments welcomeIn quantum metrology, one of the major applications of quantum technologies, the ultimate precision of estimating an unknown parameter is often stated in terms of the Cram\'er-Rao bound.
Faist, Philippe +4 more
core +3 more sources
Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies
Laser &Photonics Reviews, EarlyView.Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil +6 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 24, 8 June 2026.A series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Kazuhiro Nakamura +14 more
wiley +2 more sources
Reference-frame-independent quantum metrology
Physical Review ResearchHow can we perform a metrological task if only limited control over a quantum system is given? Here, we present systematic methods for conducting nonlinear quantum metrology in scenarios lacking a common reference frame.
Satoya Imai, Otfried Gühne, Géza Tóth
doaj +1 more source
Frontiers of Bright CEP‐Stable Broadband Infrared Sources
Laser &Photonics Reviews, EarlyView.Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley +1 more source
Fractional Shapiro steps in a cavity-coupled Josephson ring condensate
Physical Review ResearchThe Josephson effect presents a fundamental example of macroscopic quantum coherence as well as a crucial enabler for metrology (e.g., voltage standard), sensing (e.g., superconducting quantum interference device), and quantum information processing ...
Nalinikanta Pradhan +3 more
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Dissipative quantum metrology in manybody systems of identical particles
New Journal of Physics, 2014 Estimation of physical parameters is essential in almost any part of science and technology. The enhancement of performance in this task (e.g. beating the standard classical shot-noise limit) using available physical resources is a major goal in ...
F Benatti, S Alipour, A T Rezakhani
doaj +1 more source
Macromolecular Rapid Communications, EarlyView.Liquid crystal elastomer (LCE) filaments are fabricated through extrusion with in‐process UV curing, enabling controlled flow alignment and network locking of mesogens. The resulting structure responds to thermal or optical stimuli, inducing molecular reorientation and macroscopic contraction.
Anne Schwarz‐Pfeiffer, Shazia Mehtab
wiley +1 more source