Optical Cavities for Laser Cooling

2019 ◽  
Author(s):  
Galina Nemova
Keyword(s):  
Laser Cooling ◽  
Optical Cavities

Cavity Cooling Below the Recoil Limit

Science ◽  
2012 ◽  
Vol 337 (6090) ◽  
pp. 75-78 ◽  
Author(s):  
Matthias Wolke ◽  
Julian Klinner ◽  
Hans Keßler ◽  
Andreas Hemmerich
Keyword(s):  
Laser Cooling ◽  
Single Photon ◽  
Einstein Condensate ◽  
Purcell Factor ◽  
Optical Cavities ◽  
Bose Einstein Condensate ◽  
Cavity System ◽  
Bose Einstein ◽  
Cavity Cooling ◽  
Conventional Laser

Conventional laser cooling relies on repeated electronic excitations by near-resonant light, which constrains its area of application to a selected number of atomic species prepared at moderate particle densities. Optical cavities with sufficiently large Purcell factors allow for laser cooling schemes, avoiding these limitations. Here, we report on an atom-cavity system, combining a Purcell factor above 40 with a cavity bandwidth below the recoil frequency associated with the kinetic energy transfer in a single photon scattering event. This lets us access a yet-unexplored regime of atom-cavity interactions, in which the atomic motion can be manipulated by targeted dissipation with sub-recoil resolution. We demonstrate cavity-induced heating of a Bose-Einstein condensate and subsequent cooling at particle densities and temperatures incompatible with conventional laser cooling.

scholarly journals Enhanced ion–cavity coupling through cavity cooling in the strong coupling regime

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Costas Christoforou ◽  
Corentin Pignot ◽  
Ezra Kassa ◽  
Hiroki Takahashi ◽  
Matthias Keller
Keyword(s):  
Laser Cooling ◽  
Ion Traps ◽  
Geometric Constraints ◽  
The Other ◽  
Strong Coupling Regime ◽  
Quantum Networks ◽  
Optical Cavities ◽  
Cavity Coupling ◽  
Cavity Cooling ◽  
Doppler Cooling

Abstract Incorporating optical cavities in ion traps is becoming increasingly important in the development of photonic quantum networks. However, the presence of the cavity can hamper efficient laser cooling of ions because of geometric constraints that the cavity imposes and an unfavourable Purcell effect that can modify the cooling dynamics substantially. On the other hand the coupling of the ion to the cavity can also be exploited to provide a mechanism to efficiently cool the ion. In this paper we demonstrate experimentally how cavity cooling can be implemented to improve the localisation of the ion and thus its coupling to the cavity. By using cavity cooling we obtain an enhanced ion–cavity coupling of $$2\pi \times (16.7\pm 0.1)$$ 2 π × ( 16.7 ± 0.1 ) MHz, compared with $$2\pi \times (15.2\pm 0.1)$$ 2 π × ( 15.2 ± 0.1 ) MHz when using only Doppler cooling.

Phase-Shift Parameters and Small Vibrations in Resonant Optical Cavities

1987 ◽  
Author(s):  
D. M. Ross ◽  
C. Brune ◽  
C. D. Marrs
Keyword(s):  
Phase Shift ◽  
Optical Cavities

Microcavities

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Quantum Wells ◽  
Strong Light ◽  
Fundamental Physics ◽  
Postgraduate Students ◽  
Optical Cavities ◽  
Semiconductor Quantum Wells ◽  
Exciton Polaritons ◽  
Different Types ◽  
Potential Applications ◽  
Experimental Findings

Both rich fundamental physics of microcavities and their intriguing potential applications are addressed in this book, oriented to undergraduate and postgraduate students as well as to physicists and engineers. We describe the essential steps of development of the physics of microcavities in their chronological order. We show how different types of structures combining optical and electronic confinement have come into play and were used to realize first weak and later strong light–matter coupling regimes. We discuss photonic crystals, microspheres, pillars and other types of artificial optical cavities with embedded semiconductor quantum wells, wires and dots. We present the most striking experimental findings of the recent two decades in the optics of semiconductor quantum structures. We address the fundamental physics and applications of superposition light-matter quasiparticles: exciton-polaritons and describe the most essential phenomena of modern Polaritonics: Physics of the Liquid Light. The book is intended as a working manual for advanced or graduate students and new researchers in the field.

scholarly journals Intermolecular interactions in optical cavities: An ab initio QED study

2021 ◽  
Vol 154 (9) ◽  
pp. 094113
Author(s):  
Tor S. Haugland ◽  
Christian Schäfer ◽  
Enrico Ronca ◽  
Angel Rubio ◽  
Henrik Koch
Keyword(s):  
Ab Initio ◽  
Intermolecular Interactions ◽  
Optical Cavities
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