Optica Open
Browse
arXiv.svg (5.58 kB)

Ultrafast Structured Light through Nonlinear Frequency Generation in an Optical Enhancement Cavity

Download (5.58 kB)
preprint
posted on 2024-05-23, 16:00 authored by Walker M Jones, Melanie A R Reber
The generation of shaped laser beams, or structured light, is of interest in a wide range of fields, from microscopy to fundamental physics. There are several ways to make shaped beams, most commonly using spatial light modulators comprised of pixels of liquid crystals. These methods have limitations on the wavelength, pulse duration, and average power that can be used. Here we present a method to generate shaped light that can be used at any wavelength from the UV to IR, on ultrafast pulses, and a large range of optical powers. By exploiting the frequency difference between higher order modes, a result of the Gouy phase, and cavity mode matching, we can selectively couple into a variety of pure and composite higher order modes. Optical cavities are used as a spatial filter and then combined with sum frequency generation in a nonlinear crystal as the output coupler to the cavity to create ultrafast, frequency comb structured light.

History

Disclaimer

This arXiv metadata record was not reviewed or approved by, nor does it necessarily express or reflect the policies or opinions of, arXiv.

Usage metrics

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC