Results 61 to 70 of about 349,357 (303)

Coherence Cloning Using Semiconductor Laser Optical Phase-Lock Loops [PDF]

, 2009
We demonstrate the concept of coherence cloning where the coherence properties of a high-quality spectrally stabilized fiber laser are transferred to a commercially available high-power DFB semiconductor laser (SCL) using an optical phase-lock loop.
Liang, Wei, Satyan, Naresh, Yariv, Amnon
core   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Ultralow phase noise microwave generation with an Er:fiber-based optical frequency divider

, 2011
We present an optical frequency divider based on a 200 MHz repetition rate Er:fiber mode-locked laser that, when locked to a stable optical frequency reference, generates microwave signals with absolute phase noise that is equal to or better than ...
Andrew D. Ludlow, Bartels, Bartels, Diddams, Fortier, Franklyn Quinlan, Hudson, Ivanov, Jennifer A. Taylor, Jiang, Kim, Ma, Matthew S. Kirchner, Michael J. Thorpe, Millo, Millo, Nathan Lemke, Rubiola, Santarelli, Scott A. Diddams, Tara M. Fortier, Taylor, Yanyi Jiang, Zhang   +23 more
core   +1 more source

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

FEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour, Christine Volmert, Valentina Piano   +2 more
wiley   +1 more source

Experimental Study of Noise-induced Phase Synchronization in Vertical-cavity Lasers

, 2003
We report the experimental evidence of noise-induced phase synchronization in a vertical cavity laser. The polarized laser emission is entrained with the input periodic pump modulation when an optimal amount of white, gaussian noise is applied.
A. Neiman, Alessandro Zavatta, B. Shulgin, C. Zhou, C. Zhou, G. Giacomelli, Giovanni Giacomelli, H.A. Kramers, J.A. Freund, L. Callenbach, L. Gammaitoni, P. Jung, R. Adler, R.N. Mantegna, S. Barbay, S. Barbay, S. Barbay, S. Boccaletti, Stefano Lepri, Sylvain Barbay   +19 more
core   +1 more source

Quadrature noise in light propagating through a cold 87Rb atomic gas [PDF]

, 2011
We report on the study of the noise properties of laser light propagating through a cold 87Rb atomic sample held in a magneto-optical trap. The laser is tuned around the Fg = 2 \rightarrow Fe = 1, 2 D1 transitions of 87Rb. We observe quadrature-dependent
Arturo Lezama, Eugeniy E. Mikhailov, Mark D. Havey, Salim Balik, Scully MO, Travis Horrom   +5 more
core   +1 more source

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu, Qi Wang, Suhui Kuang, Dezhi Cao, Ping Ding, Shaohui Zhang, Haihua Wei, Zhirong Wei, Jinshan Xu, Xinyu Huang, Bing Liu, Shuli Liang   +11 more
wiley   +1 more source

Evolution of momentum-dependent observables under stochastic phase noise in Rabi oscillations

Physical Review Research
We derive the equations of motion of arbitrary momentum-dependent observables for a fully first-quantized, driven two-level atom in a linear potential under the presence of a stochastic laser phase.
Samuel Böhringer, Fabian Kienle, Richard Lopp   +2 more
doaj   +1 more source

Enhancing the precision limits of interferometric satellite geodesy missions

npj Microgravity, 2022
Satellite geodesy uses the measurement of the motion of one or more satellites to infer precise information about the Earth’s gravitational field. In this work, we consider the achievable precision limits on such measurements by examining approximate ...
Lorcán O. Conlon, Thibault Michel, Giovanni Guccione, Kirk McKenzie, Syed M. Assad, Ping Koy Lam   +5 more
doaj   +1 more source

Phase correlation of laser waves with arbitrary frequency spacing

, 2004
The theoretically predicted correlation of laser phase fluctuations in Lambda-type interaction schemes is experimentally demonstrated. We show, that the mechanism of correlation in a Lambda scheme is restricted to high frequency noise components, whereas
A. F. Huss, C. Neureiter, E. A. Korsunsky, L. Mandel, L. Windholz, M. Prevedelli, R. Lammegger, S. E. Harris, T. T. Grove, W. Maichen   +9 more
core   +1 more source