Optical analogue gravity physics: resonant radiation

Jack Petty*, Friedrich Ernst Wilhelm Koenig

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
7 Downloads (Pure)


The photonic crystal fiber (PCF) is a unique medium giving us the opportunity to perform experiments in carefully chosen regimes with precision and control. Using PCFs, we can perform analogue gravity experiments to study the physics of Hawking radiation and related processes such as resonant radiation. We discuss the similarities and differences between these processes and experimentally investigate the limits of effects of this type, discovering a new regime of record efficiency. We measure a 60% energy conversion efficiency from a pump to a visible femtosecond pulse by the process of resonant radiation, and demonstrate its extraordinary tunability in wavelength and bandwidth. Beyond analogue gravity, these femtosecond visible pulses provide a desirable laser source useful across a variety of modern scientific fields.
Original languageEnglish
Article number20190231
Number of pages10
JournalPhilosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences
Issue number2177
Early online date20 Jul 2020
Publication statusPublished - 7 Aug 2020


  • Hawking radiation
  • Optical fibers
  • Resonant radiation


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