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Simultaneous multiple time scale imaging for kHz-MHz high-speed accelerometry

Kornienko, Vassily LU ; Andersson, David LU ; Stiti, Mehdi LU ; Ravelid, Jonas LU ; Ek, Simon LU ; Ehn, Andreas LU ; Berrocal, Edouard LU and Kristensson, Elias LU (2022) In Photonics Research 10(7). p.1712-1722
Abstract

Fast transient events, such as the disintegration of liquid bodies or chemical reactions between radical species, involve various processes that may occur at different time scales. Currently, there are two alternatives for monitoring such events: burst- or high-speed imaging. Burst imaging at ultrahigh speeds (∼100 MHz to THz) allows for the capture of nature's fastest processes but only for a narrowly confined period of time and at a repetition rate of ∼10 Hz. Monitoring long lasting, rapidly evolving transient events requires a significantly higher repetition rate, which is met by existing ∼kHz to 1 MHz high-speed imaging technology. However, the use of such systems eliminates the possibility to observe dynamics occurring on the... (More)

Fast transient events, such as the disintegration of liquid bodies or chemical reactions between radical species, involve various processes that may occur at different time scales. Currently, there are two alternatives for monitoring such events: burst- or high-speed imaging. Burst imaging at ultrahigh speeds (∼100 MHz to THz) allows for the capture of nature's fastest processes but only for a narrowly confined period of time and at a repetition rate of ∼10 Hz. Monitoring long lasting, rapidly evolving transient events requires a significantly higher repetition rate, which is met by existing ∼kHz to 1 MHz high-speed imaging technology. However, the use of such systems eliminates the possibility to observe dynamics occurring on the sub-microsecond time scale. In this paper, we present a solution to this technological gap by combining multiplexed imaging with high-speed sensor technology, resulting in temporally resolved, high-spatial-resolution image series at two simultaneous time scales. We further demonstrate how the collection of such data opens up the tracking of rapidly evolving structures up to MHz burst rates over long durations, allowing, for the first time, to our knowledge, the extraction of acceleration fields acting upon the liquid bodies of an atomizing spray in two dimensions at kHz frame rates.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Photonics Research
volume
10
issue
7
pages
11 pages
publisher
Optical Society of America
external identifiers
  • scopus:85133838395
ISSN
2327-9125
DOI
10.1364/PRJ.451108
language
English
LU publication?
yes
id
09994a8c-3fd2-4308-8f2a-4a502107333d
date added to LUP
2022-09-23 16:01:53
date last changed
2022-09-23 16:01:53
@article{09994a8c-3fd2-4308-8f2a-4a502107333d,
  abstract     = {{<p>Fast transient events, such as the disintegration of liquid bodies or chemical reactions between radical species, involve various processes that may occur at different time scales. Currently, there are two alternatives for monitoring such events: burst- or high-speed imaging. Burst imaging at ultrahigh speeds (∼100 MHz to THz) allows for the capture of nature's fastest processes but only for a narrowly confined period of time and at a repetition rate of ∼10 Hz. Monitoring long lasting, rapidly evolving transient events requires a significantly higher repetition rate, which is met by existing ∼kHz to 1 MHz high-speed imaging technology. However, the use of such systems eliminates the possibility to observe dynamics occurring on the sub-microsecond time scale. In this paper, we present a solution to this technological gap by combining multiplexed imaging with high-speed sensor technology, resulting in temporally resolved, high-spatial-resolution image series at two simultaneous time scales. We further demonstrate how the collection of such data opens up the tracking of rapidly evolving structures up to MHz burst rates over long durations, allowing, for the first time, to our knowledge, the extraction of acceleration fields acting upon the liquid bodies of an atomizing spray in two dimensions at kHz frame rates.</p>}},
  author       = {{Kornienko, Vassily and Andersson, David and Stiti, Mehdi and Ravelid, Jonas and Ek, Simon and Ehn, Andreas and Berrocal, Edouard and Kristensson, Elias}},
  issn         = {{2327-9125}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{7}},
  pages        = {{1712--1722}},
  publisher    = {{Optical Society of America}},
  series       = {{Photonics Research}},
  title        = {{Simultaneous multiple time scale imaging for kHz-MHz high-speed accelerometry}},
  url          = {{http://dx.doi.org/10.1364/PRJ.451108}},
  doi          = {{10.1364/PRJ.451108}},
  volume       = {{10}},
  year         = {{2022}},
}