Results 41 to 50 of about 31,165 (160)
Sub-attosecond-precision optical-waveform stability measurements using electro-optic sampling
Scientific ReportsThe generation of laser pulses with controlled optical waveforms, and their measurement, lie at the heart of both time-domain and frequency-domain precision metrology.
Syed A. Hussain +8 more
doaj +1 more source
IEEE Photonics Journal, 2017 Mastering the change of cement raw materials composition in real time has important significance to timely adjusting the proportion of raw materials and improving the quality of cement products.
Lei Zhang +5 more
doaj +1 more source
Microfiber optomechanical torsion sensor
Frontiers in Physics, 2023 In this paper, we propose and demonstrate experimentally an optomechanical torsion sensor using a microfiber mechanical resonator. The torsion angle could be obtained by monitoring the resonant frequency shifts of the microfiber resonator.
Qiang Zhang +7 more
doaj +1 more source
Nature Communications, 2017 Quartz-enhanced photoacoustic spectroscopy is a sensitive gas detection method whereby radiation-induced sound waves from gas absorption are detected. Here, Wuet al. use the beat frequency between a modulated laser and a tuning fork resonance to increase
Hongpeng Wu +9 more
doaj +1 more source
Highly efficient frequency conversion with bandwidth compression of quantum light
Nature Communications, 2017 In quantum information technology the output of one element often does not match the required frequency and bandwidth of the input of the next element. Here, Allgaieret al.
Markus Allgaier +8 more
doaj +1 more source
Fiber-Amplifier-Enhanced QEPAS Sensor for Simultaneous Trace Gas Detection of NH3 and H2S
Sensors, 2015 A selective and sensitive quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplifier (EDFA), and a distributed feedback (DFB) laser operating at 1582 nm was demonstrated for simultaneous detection of ammonia (NH3)
Hongpeng Wu +8 more
doaj +1 more source
Electromagnetically induced transparency quantum memory for non-classical states of light
Advances in Physics: X, 2022 Quantum memory (QM) enables quantum state mapping between flying and stationary quantum states and is the building block of quantum information science, which enables to achieve a plethora of quantum information protocols, such as quantum state transfer ...
Xing Lei +5 more
doaj +1 more source
Polymer-Dispersed Liquid Crystal Gas Sensor for Acetone Detection Using Correlated Laser Speckles
Photonic SensorsAcetone is a widely used volatile organic compound in various industries, and several gas sensors have been developed for its detection and real-time monitoring.
Xiaoquan Bai +7 more
doaj +1 more source
Utilizing Sequential Control Scheme to Stabilize Squeezed Vacuum States
Applied Sciences, 2019 We report on a sequential control scheme to realize a steady, quasi-continuous output of squeezed vacuum states, which eliminates the influence of the seed beam on the squeezing strength. The scheme, originating from time-division multiplexing, separates
Long Tian +7 more
doaj +1 more source
Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
Advances in High Energy PhysicsWe study the transverse momentum (pT) spectra of neutral pions and identified charged hadrons produced in proton–proton (pp), deuteron–gold (d–Au), and gold–gold (Au–Au) collisions at the center of mass energy sNN=200 GeV.
Jia-Yu Chen +3 more
doaj +1 more source