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We analyze the performance of optomechanical cooling of a mechanical resonator in the presence of a degenerate optical parametric amplifier within the optomechanical cavity, which squeezes the cavity light. We demonstrate that this allows…

Quantum Physics · Physics 2019-12-18 Muhammad Asjad , Najmeh Etehadi Abari , Stefano Zippilli , David Vitali

We introduce an all-optical system, termed the "lying mirror", to hide input information by transforming it into misleading, ordinary-looking patterns that effectively camouflage the underlying image data and deceive the observers. This…

Optics · Physics 2024-10-22 Yuhang Li , Shiqi Chen , Bijie Bai , Aydogan Ozcan

We investigate a hybrid system consisting of an atomic ensemble trapped inside a dissipative optomechanical cavity assisted with the perturbative oscillator-qubit coupling. It is shown that such a hybrid system is very suitable for…

Quantum Physics · Physics 2018-11-15 Cheng-Hua Bai , Dong-Yang Wang , Shou Zhang , Hong-Fu Wang

We report on a stable optical trap suitable for a macroscopic mirror, wherein the dynamics of the mirror are fully dominated by radiation pressure. The technique employs two frequency-offset laser fields to simultaneously create a stiff…

We study the optical cooling of the resonator mirror in a cavity-optomechanical system that contains an optical gain medium. We find that the optical damping rate is vanishingly small for an incoherently pumped laser above threshold. In the…

Quantum Physics · Physics 2015-06-12 Li Ge , Sanli Faez , Florian Marquardt , Hakan E. Tureci

In this paper we present a model for the kinematics and dynamics of optomechanics which describe the coupling between an optical field, here modeled by a massless scalar field, and the internal (e.g., determining its reflectivity) and…

Quantum Physics · Physics 2013-05-01 Chad R. Galley , Ryan O. Behunin , B. L. Hu

We investigate a hybrid optomechanical system comprised of a mechanical oscillator and an atomic 3-level ensemble within an optical cavity. We show that a suitably tailored cavity field response via Electromagnetically Induced Transparency…

Quantum Physics · Physics 2015-05-28 Claudiu Genes , Helmut Ritsch , Michael Drewsen , Aurélien Dantan

We analyze the classical dynamics of a system composed of a one-dimensional cavity with a perfect, fixed mirror and a movable mirror with non-zero transparency interacting with a monochromatic laser. The movable mirror can deviate far from…

Quantum Physics · Physics 2014-11-11 Luis Octavio Castaños , Ricardo Weder

In most optomechanical systems a movable mirror is a part of an optical cavity, and its oscillation modulates either the resonance frequency of the cavity, or its coupling to the environment. There exists the third option -- which we call a…

Quantum Physics · Physics 2019-12-04 Xiang Li , Mikhail Korobko , Yiqiu Ma , Roman Schnabel , Yanbei Chen

A random-matrix theory is presented for the reflection of light by a disordered medium backed by a phase-conjugating mirror. Two regimes are distinguished, depending on the relative magnitude of the inverse dwell time of a photon in the…

Condensed Matter · Physics 2007-05-23 J. C. J. Paasschens , P. W. Brouwer , C. W. J. Beenakker

We consider a small partially reflecting vibrating mirror coupled dispersively to a single optical mode of a high finesse cavity. We show this arrangement can be used to implement quantum squeezing of the mechanically oscillating mirror.

Quantum Physics · Physics 2008-03-11 M. Bhattacharya , P. -L. Giscard , P. Meystre

We describe an experiment in which the quadratures of the position of an harmonically-bound mirror are observed at the attometer level. We have studied the Brownian motion of the mirror, both in the free regime and in the cold-damped regime…

Quantum Physics · Physics 2009-11-07 T. Briant , P. F. Cohadon , M. Pinard , A. Heidmann

Cavity cooling of an atom works best on a cyclic optical transition in the strong coupling regime near resonance, where small cavity photon numbers suffice for trapping and cooling. Due to the absence of closed transitions a straightforward…

Quantum Physics · Physics 2012-11-13 R. J. Schulze , C. Genes , H. Ritsch

We study the effect of finite size and misalignment on a fundamental optomechanical setup: a Fabry-P\'erot cavity with one fixed and one moveable mirror. We describe in detail light confinement under these real world imperfections and…

Optics · Physics 2019-01-17 P. Grünwald , B. M. Rodríguez-Lara

We describe and demonstrate a method to control a detuned movable-mirror Fabry-Perot cavity using radiation pressure in the presence of a strong optical spring. At frequencies below the optical spring resonance, self-locking of the cavity…

Optomechanical cooling of levitated dielectric particles represents a promising new approach in the quest to cool small mechanical resonators towards their quantum ground state. We investigate two-mode cooling of levitated nanospheres in a…

Quantum Physics · Physics 2013-05-30 G. A. T. Pender , P. F. Barker , Florian Marquardt , James Millen , T. S. Monteiro

We demonstrate micromechanical reflectors with a reflectivity as large as 99.4% and a mechanical quality factor Q as large as 7.8*10^5 for optomechanical applications. The reflectors are silicon nitride membranes patterned with…

Optics · Physics 2015-05-28 Utku Kemiktarak , Michael Metcalfe , Mathieu Durand , John Lawall

We experimentally study forced and self oscillations of an optomechanical cavity which is formed between a fiber Bragg grating that serves as a static mirror and between a freely suspended metallic mechanical resonator that serves as a…

Other Condensed Matter · Physics 2013-05-29 S. Zaitsev , A. K. Pandey , O. Shtempluck , E. Buks

High-reflectivity fused silica mirrors are at the epicentre of current advanced gravitational wave detectors. In these detectors, the mirrors interact with high power laser beams. As a result of finite absorption in the high reflectivity…

We report on cooling of an atomic cesium gas closely above an evanescent-wave atom mirror. At high densitities, optical cooling based on inelastic reflections is found to be limited by a density-dependent excess temperature and trap loss…

Atomic Physics · Physics 2015-06-26 M. Hammes , D. Rychtarik , V. Druzhinina , U. Moslener , I. Manek-Hönninger , R. Grimm