Megahertz-Rate Schlieren Imaging Using Diffraction-Gated Real-Time Ultrahigh-Speed Mapping Photography
We present diffraction-gated real-time ultrahigh-speed mapping schlieren (DRUMS) photography, a single-shot method for schlieren-contrast-based imaging at megahertz speeds. By using a digital micromirror device (DMD) as both a dynamic and Fourier-plane coded two-dimensional blazed grating, DRUMS photography can record schlieren images of transient events in real time at an imaging speed of 9.8 million frames per second with a sequence depth of 13 frames. We demonstrate DRUMS photography using the single-shot real-time recording of laser-induced breakdown in water.
Authors
- Brandon Helfield (ORCID: https://orcid.org/0000-0002-5846-3361)
- Patrick Kilcullen (ORCID: https://orcid.org/0000-0002-4407-3418)
- Jinyang Liang (ORCID: https://orcid.org/0000-0001-5983-0488)
- Youmin Wang (ORCID: https://orcid.org/0000-0003-0964-9677)
- Xianglei Liu
Institutions
- Meta (Israel) (IL)
- X-Fab (Germany) (DE)
- Institut National de la Recherche Scientifique (CA)
- Concordia University (CA)
Publication Details
- Published
- 2025-05-20
- DOI
- https://doi.org/10.1109/pn66844.2025.11097178
- Primary Topic
- Advanced Optical Sensing Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Natural Sciences and Engineering Research Council of Canada