Results 51 to 60 of about 83,581 (314)

Technical Study on Dual-Mirror Cooperative Frequency-Stabilized Induced Backscatter Angle Control for Locking Zones

IEEE Photonics Journal
The backscatter-induced lock-in effect constitutes a primary error source in laser gyroscopes, with the lock-in threshold critically dependent on the magnitude of the backscatter angle. Conventional dual-mirror synchronous frequency stabilization suffers
Cong Jiang, Jiajun Ma, Shicai Bai, Wenlong Ren, Kang Sun   +4 more
doaj   +1 more source

PERFORMANCE OPTIMIZATION OF THE DIODE-PUMPED SOLID-STATE LASER FOR SPACE APPLICATIONS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Research. Thermophysical and optical techniques of parameter regulation for diode pumped solid-state laser are studied as applied to space laser communication and laser ranging lines. Methods.
D. A. Arkhipov, V. I. Venglyk, V. A. Derevyanko, M. S. Egorov, Y. A. Rezunkov, V. V. Stepanov   +5 more
doaj   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Dual‐Comb Interferometry for Coherence Analysis of Tightly Locked Mid‐Infrared Quantum Cascade Laser Frequency Combs

Advanced Photonics Research
Frequency combs are powerful tools for many applications and high performances are achieved by stabilizing these lasers. For operation in the mid‐infrared, quantum cascade lasers (QCL) are ideal candidates as they present numerous advantages.
Alexandre Parriaux, Kenichi N. Komagata, Mathieu Bertrand, Valentin J. Wittwer, Jérôme Faist, Thomas Südmeyer   +5 more
doaj   +1 more source

Femtosecond Optical Laser System with Spatiotemporal Stabilization for Pump-Probe Experiments at SACLA

Applied Sciences, 2020
We constructed a synchronized femtosecond optical laser system with spatiotemporal stabilization for pump-probe experiments at SPring-8 Angstrom Compact Free Electron Laser (SACLA).
Tadashi Togashi, Shigeki Owada, Yuya Kubota, Keiichi Sueda, Tetsuo Katayama, Hiromitsu Tomizawa, Toshinori Yabuuchi, Kensuke Tono, Makina Yabashi   +8 more
doaj   +1 more source

Hyperosmotic stress‐induced redistribution of pre‐mRNA cleavage factor I subunits is associated with shifts in alternative polyadenylation

FEBS Open Bio, EarlyView.
Hyperosmotic stress triggers the relocation of the CFIm complex from the nucleus to the cytoplasm. This shift creates a nuclear ‘stoichiometric bottleneck’, limiting CFIm availability for mRNA processing. Consequently, specific mRNAs like NUDT21 and DICER1 undergo targeted 3′UTR shortening, demonstrating how spatial protein dynamics drive rapid ...
Hitomi Soumiya, Masatake Osawa, Hidefumi Fukumitsu   +2 more
wiley   +1 more source

Solution structure and dynamics of a semiconductor laser subject to feedback from two external filters [PDF]

, 2010
We present an analysis of a semiconductor laser subject to filtered optical feedback from two filtering elements (2FOF). The motivation for this study comes from applications where two filters are used to control and stabilise the laser output.
Slowinski, P., Slowinski, P, Wieczorek, Sebastian, Krauskopf, B, Wieczorek, S.   +4 more
core  

Dense wavelength multiplexing for a high power diode laser [PDF]

, 2022
Paper 61040OAt present methods of polarization and wavelength multiplexing with dielectric coatings are used to increase the brightness of diode lasers.
Traub, M., Hoffmann, D., Wessling, C., Poprawe, R.   +3 more
core   +1 more source

Simulation of the temperature drift of the laser gyroscope path length

RUDN Journal of Engineering Research, 2023
The authors present the results of modeling the temperature drift of the resonator path length of a laser gyroscope based on a ring helium-neon laser with circular polarization of radiation and a magneto-optical frequency bias based on the Zeeman effect ...
Yaroslav A. Zubarev, Anton O. Sinelnikov, Victoria U. Mnatsakanyan   +2 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source