Journal ArticleDOI
Tenfold reduction of Brownian noise in high-reflectivity optical coatings
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TLDR
In this article, direct-bonded monocrystalline multilayers are used for optical interferometry, which exhibit both intrinsically low mechanical loss and high optical quality.Abstract:
Thermally induced fluctuations impose a fundamental limit on precision measurement. In optical interferometry, the current bounds of stability and sensitivity are dictated by the excess mechanical damping of the high-reflectivity coatings that comprise the cavity end mirrors. Over the last decade, the dissipation of these amorphous multilayer reflectors has at best been reduced by a factor of two. Here, we demonstrate a new paradigm in optical coating technology based on directbonded monocrystalline multilayers, which exhibit both intrinsically low mechanical loss and high optical quality.read more
Citations
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Proceedings ArticleDOI
Hybrid SESAMs for high-repetition rate mode-locked VECSELs
Ricky Gibson,Simon P. Tsaoussis,Joshua Rollag,C. Nguyen,David Follman,Garrett D. Cole,Sadhvikas Addamane,Jerome V. Moloney,R. Jason Jones +8 more
TL;DR: In this article , a hybrid semiconductor saturable absorber mirror (SESAM) consisting of a semiconductor absorber region bonded to a curved dielectric partial reflector is realized by direct bonding of the SESAM to a commercially available ultrafast output coupler.
Dissertation
Spectrally Dependent Radiation Noise In Thermal Emission And Long-Wave Infrared High-Q Diamond Microdisks
TL;DR: Narch 2020. as discussed by the authors, Ph.D., Electrical Engineering, University of Minnesota, Bloomington, Minnesota, United States, USA. Advisor: Joseph Talghader. 1 computer file (PDF); xxii, 163 pages.
Proceedings ArticleDOI
Ultrastable lasers based on low thermal noise optical resonators
Thomas Legero,D. G. Matei,Robin Weyrich,Sebastian Häfner,Christian Grebing,Wei Zhang,John Robinson,Lindsay Sonderhouse,Paula Heu,David Follman,Christoph Deutsch,Garrett D. Cole,Markus Aspelmeyer,Fritz Riehle,Jun Ye,Uwe Sterr +15 more
TL;DR: In this article, the authors show that the fractional frequency instability of the laser is limited by Brownian thermal noise of the cavity constituents, and they find important applications, e.g. in precision tests of relativity or novel radar applications.
Journal ArticleDOI
Levitating the noise performance of ultra-stable laser cavities assisted by a deep neural network: the non-intuitive role of the mirrors.
TL;DR: In this paper , the authors present the optimization of all relevant noise sources from all components of the frequency-stabilized laser, and discuss the correlation between each individual noise source and the different parameters of the system and discover the significance of the mirrors.
References
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Journal ArticleDOI
Irreversibility and Generalized Noise
TL;DR: In this article, a relation between the generalized resistance and the generalized forces in linear dissipative systems is obtained, which forms the extension of the Nyquist relation for the voltage fluctuations in electrical impedances.
Journal ArticleDOI
LIGO: The Laser Interferometer Gravitational-Wave Observatory.
Alex Abramovici,W. E. Althouse,R. W. P. Drever,Yekta Gursel,Seiji Kawamura,F. J. Raab,David H. Shoemaker,L. Sievers,Robert Spero,Kip S. Thorne,R. E. Vogt,Rainer Weiss,S. E. Whitcomb,Michael E Zucker +13 more
TL;DR: The goal of the Laser Interferometer Gravitational-Wave Observatory (LIGO) Project is to detect and study astrophysical gravitational waves and use data from them for research in physics and astronomy.
Journal ArticleDOI
Frequency Ratio of Al+ and Hg+ Single-Ion Optical Clocks; Metrology at the 17th Decimal Place
Till Rosenband,David Hume,Piet O. Schmidt,Chin-Wen Chou,A. Brusch,Luca Lorini,Windell H. Oskay,Robert E. Drullinger,Tara M. Fortier,Jason Stalnaker,Scott A. Diddams,William C. Swann,Nathan R. Newbury,Wayne M. Itano,David J. Wineland,J. C. Bergquist +15 more
TL;DR: Repeated measurements during the past year yield a preliminary constraint on the temporal variation of the fine-structure constant α of α ofbatchmode, a regime of operation for atomic clocks based on optical transitions, promising even higher performance.
Journal ArticleDOI
LIGO: The Laser Interferometer Gravitational-Wave Observatory
TL;DR: Laser Interferometric Gravitational-Wave Observatory (LIGO) as discussed by the authors is a project to detect and study gravitational waves of astrophysical origin, which holds the promise of testing general relativity in the strong-field regime, providing a new probe of exotic objects such as black hole and neutron stars, and uncovering unanticipated new astrophysics.
Journal ArticleDOI
LIGO: The laser interferometer gravitational-wave observatory
TL;DR: LIGO as discussed by the authors is a trio of extremely sensitive Michelson interferometers built to detect gravitational waves from space, and the results of their recent observations are described in detail.