Results 71 to 80 of about 126,256 (297)

Passive mode locking of a Tm,Ho:KY(WO4)(2) laser around 2 μm [PDF]

, 2009
We report the first demonstration, to our knowledge, of passive mode locking in a Tm3+, Ho3+-codoped KYWO42 laser operating in the 2000-2060 nm spectral region.
A. A. Lagatsky, C. T. A. Brown, Coluccelli, Cornacchia, F. Fusari, Galzerano, Han, J. A. Gupta, Kivistö, Kivistö, M. D. Dawson, Mateos, N. V. Kuleshov, Nelson, Petrov, Pinto, S. Calvez, Sharp, Solodyankin, V. E. Kisel, W. Sibbett   +20 more
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Modulation-free laser stabilization technique using integrated cavity-coupled Mach-Zehnder interferometer

Nature Communications
Stable lasers play a significant role in precision optical systems where an electro-optic laser frequency stabilization system, such as the Pound-Drever-Hall technique, measures laser frequency and actively stabilizes it by comparing it to a frequency ...
Mohamad Hossein Idjadi, Kwangwoong Kim, Nicolas K. Fontaine   +2 more
doaj   +1 more source

A Laser System for the Spectroscopy of Highly-Charged Bismuth Ions

, 2011
We present and characterize a laser system for the spectroscopy on highly-charged ^209Bi^82+ ions at a wavelength of 243.87 nm. For absolute frequency stabilization, the laser system is locked to a near-infra-red laser stabilized to a rubidium transition
B. Edlen, C. Siegel, D.F.A. Winters, D.H. McIntyre, D.H. McIntyre, D.H. McIntyre, E. Riedle, G. Birkl, G.P. Barwood, I. Klaft, J. Cariou, J.D. Gillaspy, M. Finkenbeiner, M. Vogel, M. Vogel, N. Herschbach, P. Cancio, S. Albrecht, S. Altenburg, S. Borneis, T. Führer, T. Stöhlker, V.M. Shabaev, W. Quint   +23 more
core   +1 more source

Stabilization and precise calibration of a continuous-wave difference frequency spectrometer by use of a simple transfer cavity [PDF]

, 1994
A novel, simple, and inexpensive calibration scheme for a continuous-wave difference frequency spectrometer is presented, based on the stabilization of an open transfer cavity by locking onto the output of a polarization stabilized HeNe laser.
Ashworth, S. H., Farrell, Jr., J. T., Nesbitt, D. J., Riedle, Eberhard   +3 more
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Spectrally narrow, long-term stable optical frequency reference based on a Eu$^{3+}$:Y$_{2}$SiO$_{5}$ crystal at cryogenic temperature

, 2011
Using an ultrastable continuous-wave laser at 580 nm we performed spectral hole burning of Eu$^{3+}$:Y$_{2}$SiO$_{5}$ at very high spectral resolution.
Alexander Nevsky, Andrei Troshyn, Ingo Ernsting, Qun-Feng Chen, R. M. Macfarlane, Sergey Vasilyev, Steffen Kayser, Stephan Schiller   +7 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

High-precision and fast-response laser power stabilization system for cold atom experiments

AIP Advances, 2018
An innovative and practical scheme of building laser power stabilization system is proposed by using external-control method. A high-speed Field Programmable Gate Array (FPGA) is used as real-time controller, which makes the closed-loop control period of
Qi-Xue Li, Shu-Hua Yan, Enlong Wang, Xu Zhang, Huankai Zhang   +4 more
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source