Results 1 to 10 of about 106,727 (167)

Phase Nanoscopy with Correlated Frequency Combs

open access: yesSensors, 2022
This study addresses any sensor based on measuring a physical quantity through the phase of a probing beam. This includes sensing of rotation, acceleration, index change, displacement, fields… While most phase measurements are made by detecting an ...
Xiaobing Zhu   +2 more
doaj   +1 more source

Intracavity Measurement Sensitivity Enhancement without Runaway Noise

open access: yesSensors, 2021
A method to increase the sensitivity of an intracavity differential phase measurement that is not made irrelevant by a larger increase of noise is explored.
Luke Horstman, Jean-Claude Diels
doaj   +1 more source

A High-Sensitivity Resonant Magnetic Sensor Based on Graphene Nanomechanical Resonator

open access: yesMicromachines, 2022
This paper presents a novel resonant magnetic sensor consisting of a graphene nanomechanical oscillator and magnetostrictive stress coupling structure, using Si/SiO2 substrate and Fe–Ga alloy, respectively.
Wenyao Liu   +6 more
doaj   +1 more source

Precision ultrasound sensing on a chip [PDF]

open access: yesNature Communications, 2019
AbstractUltrasound sensors have wide applications across science and technology. However, improved sensitivity is required for both miniaturisation and increased spatial resolution. Here, we introduce cavity optomechanical ultrasound sensing, where dual optical and mechanical resonances enhance the ultrasound signal.
Basiri-Esfahani, Sahar   +3 more
openaire   +8 more sources

All-Optical Tuning of Fano Resonance for Quasi-BIC and Terahertz Sensing Applications

open access: yesApplied Sciences, 2022
The bound states in the continuum (BIC) support anomalous resonances in the optical or terahertz band with a theoretically infinite quality factor. Therefore, it has great application prospects in the field of sensors.
Wenyao Liu   +7 more
doaj   +1 more source

Bit precision analysis for compressed sensing [PDF]

open access: yes2009 IEEE International Symposium on Information Theory, 2009
This paper studies the stability of some reconstruction algorithms for compressed sensing in terms of the bit precision. Considering the fact that practical digital systems deal with discretized signals, we motivate the importance of the total number of accurate bits needed from the measurement outcomes in addition to the number of measurements.
Ehsan Ardestanizadeh   +2 more
openaire   +2 more sources

Stern-Gerlach Interferometry for Tests of Quantum Gravity and General Applications

open access: yesFrontiers in Physics, 2022
Stern-Gerlach and/or matter-wave interferometry has garnered significant interest amongst members of the scientific community over the past few decades. Early theoretical results by Schwinger et al.
Yash Lokare
doaj   +1 more source

Mode-Locked Fiber Laser Sensors with Orthogonally Polarized Pulses Circulating in the Cavity

open access: yesSensors, 2023
Intracavity phase interferometry is a powerful phase sensing technique using two correlated, counter-propagating frequency combs (pulse trains) in mode-locked lasers.
Hanieh Afkhamiardakani   +1 more
doaj   +1 more source

Control of Frequency Combs with Passive Resonators

open access: yesSensors, 2023
Tailored optical frequency combs are generated by nesting passive etalons within mode-locked oscillators. In this work, the oscillator generates a comb of 6.8 GHz with 106 MHz side-bands.
James Hendrie   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy