Results 61 to 70 of about 2,219 (213)
Sensors, 2022 An all-fiber distributed airflow sensing method based on a differential pulse-width pair Brillouin optical time domain analysis (DPP-BOTDA) and a self-heated high-attenuation fiber (HAF) is proposed and demonstrated.
Hongying Zhang +3 more
doaj +1 more source
Nanophotonics, Volume 15, Issue 9, 13 May 2026.This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian +7 more
wiley +1 more source
Dynamic nonreciprocity in loss-compensated piezophononic media [PDF]
, 2018 Violating time-reversal symmetry enables one to engineer nonreciprocal structures for isolating and rectifying sound and mechanical vibrations. Rectifying sound is commonly achieved in nonlinear media, but the operation is inherently linked to weak and ...
Christensen, Johan +2 more
core +1 more source
水下无人系统学报Aiming at the problem that the self-interference cancellation performance is degraded due to the phase mismatch between the transmitting and receiving samples in the in-band full-duplex underwater acoustic communication, this paper proposed a method to ...
Songwen WU +5 more
doaj +1 more source
Electromagnetic Noise Characterization and Suppression in Low‐Field MRI Systems
Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 3000-3007, May 2026.ABSTRACT Purpose Our goal is to develop and validate a practical protocol that guides users in identifying and suppressing electromagnetic noise in low‐field MRI systems, enabling operation near the thermal noise limit. Methods We present a systematic, stepwise methodology that includes diagnostic measurements, hardware isolation strategies, and good ...
Teresa Guallart‐Naval +2 more
wiley +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Field Programmable Gate Array‐Based Control Systems for Highly Stable Laser Applications
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This review highlights the transition from analog to FPGA‐based digital architectures for laser frequency stabilization, noting their superior latency and flexibility. It focuses on Modulation Transfer Spectroscopy (MTS) as a robust, background‐free method for high‐precision locking that minimizes residual amplitude modulation.
Prosenjit Majumder, Rakesh Tirupathi
wiley +1 more source
Modulated-nonlinearity in phononic crystals: From extremely linear to effective cubic nonlinear media [PDF]
, 2018 [EN] In solids, the constitutive relations between strain and stress lead in most cases to a dominant quadratic nonlinear response. However, there exist some solid materials that exhibit negative quadratic nonlinearity, as occurs in common glasses as ...
Jimenez, Noe +3 more
core +1 more source
Superdirectional Parametric Array Loudspeaker
Revista Elektrón, 2019 In this work, a directional loudspeaker, also known as a parametric array loudspeaker (PAL), is designed and constructed. The operation is based on the phenomenon called self-demodulation that happens when high-frequency beams interact in a viscous ...
Axel Montes de Oca +3 more
doaj
Resonant Tunneling Diode‐Integrated Terahertz Transceiver Module for Wireless Communications
Advanced Photonics Research, Volume 7, Issue 4, April 2026.Resonant tunneling diode‐enabled terahertz transceiver module. Terahertz bands are essential for next‐generation wireless communications, offering ultrabroad bandwidth and unprecedented data throughput. However, realizing compact, low‐cost, broadband, and efficient terahertz transceiver modules remains challenging.
Weijie Gao +12 more
wiley +1 more source