Results 101 to 110 of about 349,357 (303)

Laser communication system is insensitive to atmospherically induced noise [PDF]

, 1967
Angle modulated transmitted reference heterodyne laser communication system is insensitive to atmospherically induced amplitude noise fluctuations and phase ...
Packard, J. N.
core   +1 more source

The performance of arm locking in LISA

, 2009
For the laser interferometer space antenna (LISA) to reach it's design sensitivity, the coupling of the free running laser frequency noise to the signal readout must be reduced by more than 14 orders of magnitude.
McKenzie, Kirk, Shaddock, Daniel A., Spero, Robert E.   +2 more
core   +1 more source

Quantum noise in the position measurement of a cavity mirror undergoing Brownian motion [PDF]

, 1999
We perform a quantum theoretical calculation of the noise power spectrum for a phase measurement of the light output from a coherently driven optical cavity with a freely moving rear mirror. We examine how the noise resulting from the quantum back action
A. Dorsel, A. F. Pace, A. Gillespie, A. Heidmann, A. Heidmann, A. Luis, A. O. Caldeira, A. O. Caldeira, A. Yariv, B. C. Buchler, B. R. Mollow, C. Cohen-Tannoudji, C. Fabre, C. M. Caves, C. M. Caves, C. Schoenenberger, C. W. Gardiner, C. W. Gardiner, C. W. Gardiner, D. Hils, G. C. Bjorklund, G. C. Bjorklund, G. J. Milburn, H. M. Wiseman, H. M. Wiseman, H. P. Yuen, H. P. Yuen, I. Tittonen, I. Tittonen, K. A. Strain, K. Jacobs, K. Jacobs, K. Jacobs, K. Nakagawa, L. Diosi, L. Diosi, L. P. Ghislain, M. J. Collett, M. Ley, M. Ozawa, M. Pinard, M. Pinard, M. T. Jaekel, N. C. Wong, P. R. Saulson, P. Samphire, R. Loudon, R. S. Bondurant, R. W. P. Drever, S. Bose, S. Bose, S. Gnutzmann, S. Mancini, S. P. Vyatchanin, S. P. Vyatchanin, S. P. Vyatchanin, S. Schiller, T. D. Stowe, V. B. Braginsky, V. B. Braginsky, W. A. Edelstein, W. G. Unruh, W. G. Unruh, W. J. Munro, W.-T. Ni, Yi Pang   +65 more
core   +2 more sources

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Low-phase noise and high-power laser for Bragg atom interferometer

AIP Advances, 2017
We present a laser system with low-phase noise and an output power up to 8.8 W at 780 nm for driving Bragg transitions in a   87Rb fountain. An optical phase-locked loop (OPLL) is employed to restrain the phase noise that arises from the spatial ...
Yuan Cheng, Ke Zhang, Le-Le Chen, Wen-Jie Xu, Qin Luo, Min-Kang Zhou, Zhong-Kun Hu   +6 more
doaj   +1 more source

Phase noise reduction by self-phase locking in semiconductor lasers using phase conjugate feedback [PDF]

, 1994
A theoretical analysis of the behavior of the frequency/phase noise of semiconductor lasers with external phase conjugate feedback is presented. It is shown that the frequency noise is drastically reduced even for lasers with butt-coupled phase conjugate
Gliese, Ulrik Bo, Nielsen, Torben Nørskov, Petersen, Lykke   +2 more
core   +1 more source

PEDOT‐Based Eutectogel Electrode Arrays for Enhanced High‐Resolution Electrogastrography: Fabrication, Stability, and Wearable Performance

Advanced Functional Materials, EarlyView.
Here, we present a high‐density PEDOT eutectogel electrode array for enhanced body surface gastric mapping. Silver electrodes are blade‐coated onto flexible substrates, followed by electrogelation of PEDOT:PSS and the deposition of a PEDOT:LS eutectogel.
Christopher Slaughter, Luke Gatecliff, Xudong Tao, Ruben Ruiz‐Mateos Serrano, Amy T. Jin, Matias L. Picchio, Daniele Mantione, Antonio Dominguez‐Alfaro, George G. Malliaras   +8 more
wiley   +1 more source

Using Low-Density Parity-Check Codes to Reduce the Effect of Laser Line width For Optical Communication

مجلة النهرين للعلوم الهندسية, 2011
The performance of coherent optical communication systems is degraded significantly by the phase noise of the semiconductor lasers. The phase noise is induced by spontaneous emission in the laser cavity and yields broadening in the laser linewidth.
R. S. Fyath, Hussam A. Darweesh
doaj  

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

The finite mass beamsplitter in high power interferometers

, 2004
The beamplitter in high-power interferometers is subject to significant radiation-pressure fluctuations. As a consequence, the phase relations which appear in the beamsplitter coupling equations oscillate and phase modulation fields are generated which ...
B. Caron, Jan Harms, Karsten Danzmann, Roman Schnabel   +3 more
core   +1 more source