Results 81 to 90 of about 126,256 (297)

Improving 795 nm Single-Frequency Laser’s Frequency Stability by Means of the Bright-State Spectroscopy with Rubidium Vapor Cell

Photonics
The utilization of atomic or molecular spectroscopy for frequency locking of single-frequency laser to improve laser frequency stability plays an important role in the experimental investigation of optically pumped atomic magnetometers, atomic clocks ...
Junye Zhao, Yongbiao Yang, Lulu Zhang, Yang Li, Junmin Wang   +4 more
doaj   +1 more source

A vibration modulation method for natural mode measurement of external-cavity diode laser

AIP Advances, 2018
A vibration modulation method is introduced for natural mode measurement of external-cavity diode laser. The detuning power spectrum of the Fabry-Perot resonator is investigated by actively driving frequency range (0 ∼3 kHz) acoustic field to provide a ...
Wei Quan, Sizhe Liu, Yueyang Zhai
doaj   +1 more source

Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth

, 2010
We present a high bandwidth piezoelectric-actuated mirror for length stabilization of an optical cavity. The actuator displays a transfer function with a flat amplitude response and greater than 135$^\circ$ phase margin up to 200 kHz, allowing a 180 kHz ...
Abramovici, Alnis, Arman Cingöz, Boyd, Coddington, Cundiff, Debs, Drever, Dylan C. Yost, Foreman, Hall, Jitschin, Jun Ye, Lopez, Ludlow, Musha, Nazarova, Notcutt, Salomon, Schibli, Terra, Thomas R. Schibli, Thorpe, Travis C. Briles, Udem, Williams, Young   +26 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Research on the Frequency Stabilization System of an External Cavity Diode Laser Based on Rubidium Atomic Modulation Transfer Spectroscopy Technology

Photonics
To achieve high-frequency stability on the external cavity diode laser (ECDL), a 780 nm ECDL serves as the seed light source, and its frequency is precisely locked to the saturated absorption peak of rubidium (Rb) atoms using modulation transfer ...
Yueyang Wu, Fangjun Qin, Zhichao Ding, Rui Xu, Dongyi Li   +4 more
doaj   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Modulation-free laser frequency stabilization via balanced detection of common-path Fano resonance in all-PM fiber cavity

APL Photonics
Laser frequency stabilization is indispensable for extensive applications involving precision measurements, and the best performance has been achieved with the Pound–Drever–Hall technique. However, it relies on a bulky ultrastable Fabry–Pérot cavity with
Jiehao Wang, Yuhang Li, Yiting Chen, Shuyang He, Qiang Liu   +4 more
doaj   +1 more source

Sub-megahertz laser stabilization by harnessing orthogonality between the acousto-optic modulator dither and atomic spectroscopy

Results in Optics
A sub-MHz frequency stability of the laser is crucial in the quantum-atom experiment where precise atomic transition is required for control and manipulation of atom like in the atom quantum computing.
Phatwarach Siriworakoonchai, Parinya Udommai, Nuttanan Tanasanchai, Waranont Anukool   +3 more
doaj   +1 more source

Investigation of laser frequency stabilization [PDF]

Frequency stabilization of far infrared ...
Corcoran, V. J., Cupp, R. E., Gallagher, J. J., Smith, W. T.   +3 more
core   +1 more source