Multi-frame interferometric imaging with a femtosecond stroboscopic pulse train for observing irreversible phenomena
Name
Multi-frame_Interferometric_Imaging_with_a_Femtose.pdf
Description
Accepted version
Size
747.38 KB
Format
Adobe PDF
Checksum (MD5)
ca9e701afd756a5c41177b2dbfa78495
Author(s)
Martynowych, Dmitro
Veysset, David Georges
Maznev, Alexei
Sun, Yuchen
Kooi, Steven E
Nelson, Keith Adam
Date Issued
March 2020
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
Martynowych, Dmitro et al. "Multi-frame interferometric imaging with a femtosecond stroboscopic pulse train for observing irreversible phenomena." Review of Scientific Instruments 91, 3 9 (March 2020): 033711 © 2020 Author(s)
Version
Author's final manuscript
Abstract
We describe a high-speed single-shot multi-frame interferometric imaging technique enabling multiple interferometric images with femtosecond exposure time over a 50 ns event window to be recorded, following a single laser-induced excitation event. The stroboscopic illumination of a framing camera is made possible through the use of a doubling cavity that produces a femtosecond pulse train that is synchronized to the gated exposure windows of the individual frames of the camera. The imaging system utilizes a Michelson interferometer to extract phase and ultimately displacement information. We demonstrate the method by monitoring laser-induced deformation and the propagation of high-amplitude acoustic waves in a silicon nitride membrane. The method is applicable to a wide range of fast irreversible phenomena such as crack branching, shock-induced material damage, cavitation, and dielectric breakdown.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.5140446
