Results 21 to 30 of about 269,456 (297)

Optical realization of the dissipative quantum oscillator

, 2016
An optical realization of the damped quantum oscillator, based on transverse light dynamics in an optical resonator with slowly-moving mirrors, is theoretically suggested.
Eaton, Shane M., Longhi, Stefano
core   +1 more source

Physical meaning of the radial index of Laguerre-Gauss beams [PDF]

, 2015
The Laguerre-Gauss modes are a class of fundamental and well-studied optical fields. These stable, shape-invariant photons - exhibiting circular-cylindrical symmetry - are familiar from laser optics, micro-mechanical manipulation, quantum optics ...
Krenn, Mario, Plick, William N.
core   +3 more sources

Impact of Humidity on Quartz-Enhanced Photoacoustic Spectroscopy Based CO Detection Using a Near-IR Telecommunication Diode Laser

Sensors, 2016
A near-IR CO trace gas sensor based on quartz-enhanced photoacoustic spectroscopy (QEPAS) is evaluated using humidified nitrogen samples. Relaxation processes in the CO-N2-H2O system are investigated.
Xukun Yin, Lei Dong, Huadan Zheng, Xiaoli Liu, Hongpeng Wu, Yanfang Yang, Weiguang Ma, Lei Zhang, Wangbao Yin, Liantuan Xiao, Suotang Jia   +10 more
doaj   +1 more source

Quartz Enhanced Conductance Spectroscopy for Polymer Nano-Mechanical Thermal Analysis

Applied Sciences, 2020
A fast and highly sensitive polymer nano-mechanical thermal analysis method for determining the melting temperature (Tm) of polymer microwires was proposed.
Shangzhi Li, Bo Sun, Zhijin Shang, Biao Li, Ruyue Cui, Hongpeng Wu, Lei Dong   +6 more
doaj   +1 more source

Electronic energy transfer in single conjugated polymer molecules revealed by phase-modulated pulse-pair controlled single molecule spectroscopy

AIP Advances, 2021
Detailed understanding of the electronic energy transfer dynamics in conjugated polymer molecules and their conformation dependence is central for improving the photophysical properties as well as the performance of devices based on conjugated polymers ...
Ruiyun Chen, Yao Li, Wenling Guan, Guofeng Zhang, Chengbing Qin, Jianyong Hu, Liantuan Xiao, Suotang Jia   +7 more
doaj   +1 more source

Impedance self-matching ultra-narrow linewidth fiber resonator by use of a tunable π-phase-shifted FBG

Scientific Reports, 2017
In this paper, we present a novel ultra-narrow linewidth fiber resonator formed by a tunable polarization maintaining (PM) π-phase-shifted fiber Bragg grating and a PM uniform fiber Bragg grating with a certain length of PM single mode fiber patch cable ...
Mingyong Jing, Bo Yu, Jianyong Hu, Huifang Hou, Guofeng Zhang, Liantuan Xiao, Suotang Jia   +6 more
doaj   +1 more source

Strategies for achieving high key rates in satellite-based QKD

npj Quantum Information, 2021
Quantum key distribution (QKD) is a pioneering quantum technology on the brink of widespread deployment. Nevertheless, the distribution of secret keys beyond a few 100 km at practical rates remains a major challenge.
Sebastian Ecker, Bo Liu, Johannes Handsteiner, Matthias Fink, Dominik Rauch, Fabian Steinlechner, Thomas Scheidl, Anton Zeilinger, Rupert Ursin   +8 more
doaj   +1 more source

Performance Improvement of Single-Frequency CW Laser Using a Temperature Controller Based on Machine Learning

Micromachines, 2022
The performance improvement of an all-solid-state single-frequency continuous-wave (CW) laser with high output power is presented in this paper, which is implemented by employing a temperature control system based on machine learning to control the ...
Haoming Qiao, Weina Peng, Pixian Jin, Jing Su, Huadong Lu   +4 more
doaj   +1 more source

A new perturbative expansion of the time evolution operator associated with a quantum system

, 2005
A novel expansion of the evolution operator associated with a -- in general, time-dependent -- perturbed quantum Hamiltonian is presented. It is shown that it has a wide range of possible realizations that can be fitted according to computational ...
Agarwal G S, Agarwal G S, Amerio L, Aniello P, Aniello P Man’ko V Marmo G Porzio A Solimeno S Zaccaria F Moya Cessa H, Berlin G, Blockey C A, Bohr H, Breuer H P, Casas F, Cirac J I, Cohen-Tannoudji C, Engel K J, Fang M-F, Holevo A S, Jaynes E T, Kato T, Kato T, Magnus W, Messiah A, Militello B, Nielsen M A, P Aniello, Phoenix S J D, Reed M, Schleich W P, Seke J, Yosida K, Zaidman S   +28 more
core   +1 more source

A Multi-Pass Optically Pumped Rubidium Atomic Magnetometer with Free Induction Decay

Sensors, 2022
A free-induction-decay (FID) type optically-pumped rubidium atomic magnetometer driven by a radio-frequency (RF) magnetic field is presented in this paper.
Lulu Zhang, Yongbiao Yang, Ni Zhao, Jun He, Junmin Wang   +4 more
doaj   +1 more source