# High-Frequency Gravitational Waves in Electromagnetic Waveguides

- Institution: CERN
- Department: TH institutes
- Speaker: Francesco Sorge
- Year: 2023
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3020054)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The interaction between a very-high-frequency gravitational wave (VHFGW) and an electromagnetic wave (EMW) in a rectangular waveguide is discussed in the weak field limit. The background EMW is assumed to be initially in the TE10 mode along the waveguide. It is then shown that a VHFGW, having the same frequency and direction of propagation of the EMW, induces through the waveguide a TE mode with a frequency doubled when compared to the original EMW frequency. In that respect, the GW acts similar to a non-linear medium, giving rise to a Second Harmonic Generation (SHG) effect..

0:00:00 Slide 1

0:02:41 Slide 2

0:03:43 Slide 3

0:07:15 Slide 4

0:08:17 Slide 5

0:11:28 Slide 6

0:12:36 Slide 7

0:14:00 Slide 8

0:15:18 Slide 9

## Lectures

1. [High-Frequency Gravitational Waves in Electromagnetic Waveguides](https://invisiblenetwork.ai/learn/cern/3020054/37508b2cc90f), 23 min (CERN's player)