The Penrose process in nonlinear optics

Maria Chiara Braidotti, Francesco Marino, Ewan M. Wright, Daniele Faccio

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


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.

Original languageEnglish (US)
Article number010501
JournalAVS Quantum Science
Issue number1
StatePublished - Mar 1 2022

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Computational Theory and Mathematics
  • Computer Networks and Communications
  • Physical and Theoretical Chemistry


Dive into the research topics of 'The Penrose process in nonlinear optics'. Together they form a unique fingerprint.

Cite this