The Penrose process in nonlinear optics

Year: 2022

Authors: Braidotti M.C., Marino F., Wright E.M., Faccio D.

Autors Affiliation: School of Physics and Astronomy, University of Glasgow, G12 8QQ Glasgow, United Kingdom.
CNR-Istituto Nazionale di Ottica, L.go E. Fermi 6, I-50125 Firenze, Italy.
INFN, Sez. di Firenze, Via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy.
4Wyant College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA.
Institute of Photonics and Quantum Sciences, Heriot-Watt University, EH14 4AS Edinburgh, United Kingdom.

Abstract: Penrose process is a mechanism by which energy may be extracted from the rotation of a Kerr black hole. The goal of this Perspective is to describe the elements that combine to allow a tabletop nonlinear optics experiment involving laser propagation in a medium to provide a versatile platform for elucidating the intimate details of the Penrose process. Key elements include propagation in a thermo-optic medium viewed as a photon fluid, rotating black hole geometries in a photon superfluid, and the Zel’dovich effect, and we highlight connections to the work of Roger Penrose throughout. In addition, we point out how the Penrose process has led to the notion of geometry-induced phase-matching in nonlinear optics, thereby highlighting the synergy between the fields of nonlinear optics and analog black holes.

Journal/Review: AVS QUANTUM SCIENCE

Volume: 4 (1)      Pages from: 10501-1  to: 10501-13

More Information: M.C.B. and D.F. acknowledge financial support from EPSRC (UK Grant No. EP/P006078/2) and the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 820392). E.M.W. would like to thank Fergus Wright for insightful discussions regarding waves in rotating systems.
KeyWords: Black-hole; Hawking Radiation; Analog; Amplification; Reflection; Waves; Stability; Equation; Sound
DOI: 10.1116/5.0073218

Citations: 4
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