Rotating Mirror Digital Streak Camera for Investigation of Fast Processes

Андрианов, В. П.; Bazarov, Yu. B.; Gubachev, A. V.; Dulin, O. N.; Elgaenkov, A. E.; Kamenev, V. G.; Kuzin, V. M.; Litvinova, M. S.; Lobastov, S. A.; Turkin, V. N.; Shubin, A. S.

doi:10.1134/s0010508218050167

Cited by 3 publications

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“…In this form the DMD and CCD have formed a version of a streak camera. [22][23][24] The incoming light can be predispersed with a grating before the DMD in a direction orthogonal to the sweep direction, such that the "image" recorded by the CCD is an instantaneous two-dimensional (2D) map of the temporal and spectral characteristics of the light source.…”

Section: Optical Engineeringmentioning

confidence: 99%

“…If light reflected from the DMD midtransition is swept across a sensor array such as a CCD then, in its simplest form, the “track” that is recorded will represent the temporal evolution of the light source during that sweep. In this form the DMD and CCD have formed a version of a streak camera 22 – 24 The incoming light can be predispersed with a grating before the DMD in a direction orthogonal to the sweep direction, such that the “image” recorded by the CCD is an instantaneous two-dimensional (2D) map of the temporal and spectral characteristics of the light source.…”

Section: Introductionmentioning

confidence: 99%

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Temporal and spectral dispersion of an optical source using a micromirror array-based streak camera

Benton

2022

Opt. Eng.

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The digital micromirror device (DMD) is an array of tilting micromirrors, capable of high frame rates that are made possible by rapid changes of angular state. The rapid angular change of the mirrors is used to sweep an optical signal across a camera sensor, resulting in a version of a streak camera, capable of temporal dispersion of an optical signal. Using a single pixel or single line of pixels can produce a continuous temporal track, whereas a two-dimensional array of mirrors scans an intensity envelope across discrete diffraction orders. Temporal resolutions of 10nS have been achieved and used to measure laser pulse widths. Combining with a diffraction grating oriented orthogonally to the temporal dispersion enables temporal and spectral dispersion to be obtained simultaneously.

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Section: Optical Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temporal and spectral dispersion of an optical source using a micromirror array-based streak camera

Benton

2022

Opt. Eng.

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“…Being able to measure and observe ultrafast phenomena is essential in many fundamental areas of research [1,2]. A streak camera is an ultrafast detector with a temporal resolution of the order of picoseconds or femtoseconds, but it can only record one-dimensional (1D) spatial information [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design of a novel high-performance ultrafast optical framing camera

et al. 2020

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The analysis of fast physical phenomena is a relevant tool in several fields including atomic physics and photochemistry. In turn, to record phenomena occurring on an ultra-short time scale, one needs an imaging system that can accurately capture the event. In this paper, we propose a novel ultrafast optical framing camera that achieves a spatial resolution up to 36.6 LP/mm while keeping a high temporal resolution of 3.25 ns using a digital delay generator. Our technique involves the splitting of light into four beams and their imaging on four ICCD cameras. In addition, the data transfer system is designed to combine data-streams from multiple digital ports into a single output, thus providing a compact user interface. The characteristic parameters influencing the temporal resolution of the image intensifier has been analyzed, and the framing camera has been experimentally assessed. Our results show that a temporal resolution of 3.25 ns and a spatial resolution of 36.6 LP/mm can be obtained. We foresee the use of our apparatus for inertial confined fusion. K: Instrumentation for hadron therapy; Instrumentation for heavy-ion therapy 1Corresponding author.

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Features Of Digital Colourimetry Application in Modern Scientific Research

Zhbanova

2021

L&E

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The paper is devoted to digital colorimetry, has a character of review, and deals with the main issues of colorimetric calculations and transformations during digital colour registration. The presented materials are intended to help researchers already at the stage of registration to exclude colour losses and, accordingly, errors of measurements, taking into account the following features: – The connection of colorimetric measurements with digital circuit design is shown, which results in digital colorimetry as a tool for acquiring and processing accurate colour information about the object of study; – Important issues such as: selection criteria for parameters of photodetector arrays, colour separation systems, working colour spaces, formats of colour images, and post-processing methods for colour information of images; – Colour separation systems of photodetector arrays, their advantages and disadvantages, influence on the registration result and prospects of new developments in this field are described; – Working colour spaces of digital recording systems, and also colour systems are considered allowing maximum saving colour parameters of digital impression; – To understand human colour perception, the problem of hardware-independent reproduction of colour and images after image registration is considered; – It is proposed to use such colorimetric systems in the analysis of colour parameters in scientific studies, which give understanding of human image perception in the analysis of image quality. The paper gives a broad overview of the digital colorimetry main aspects and researches on this topic for specialists who use digital colour recorders as a tool in their experimental research. This material can also be useful for specialists with deep knowledge in colorimetry who use digital colour recorders as part of their main tasks in the definite field of science and technology.

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Rotating Mirror Digital Streak Camera for Investigation of Fast Processes

Cited by 3 publications

References 0 publications

Temporal and spectral dispersion of an optical source using a micromirror array-based streak camera

Temporal and spectral dispersion of an optical source using a micromirror array-based streak camera

Design of a novel high-performance ultrafast optical framing camera

Features Of Digital Colourimetry Application in Modern Scientific Research

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