# Analogue Casimir Radiation using an Optical Para- metric Oscillator

## TL;DR

This paper proposes using an optical parametric oscillator to simulate the dynamical Casimir effect, enabling easier detection of photon emission and providing a platform to test different theoretical models.

## Contribution

It introduces a novel analogy between the dynamical Casimir effect and an optical parametric oscillator for experimental simulation.

## Key findings

- Photon flux from the proposed system is more detectable than mechanical mirror excitation.
- The approach allows discrimination between different theoretical predictions.
- The system effectively simulates a cavity oscillating in vacuum at optical frequencies.

## Abstract

We establish an explicit analogy between the dynamical Casimir effect and the photon emission of a thin non-linear crystal pumped inside a cavity. This allows us to propose a system based on a type-I optical parametric oscillator (OPO) to simulate a cavity oscillating in vacuum at optical frequencies. The resulting photon flux is expected to be more easily detectable than with a mechanical excitation of the mirrors. We conclude by comparing different theoretical predictions and suggest that our experimental proposal could help discriminate between them.