FPGA based demodulation of laser induced fluorescence in plasmas

Sean W. Mattingly; Fred Skiff

doi:10.1063/1.4995971

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FPGA based demodulation of laser induced fluorescence in plasmas

Journal article

Open access

Peer reviewed

FPGA based demodulation of laser induced fluorescence in plasmas

Sean W. Mattingly and Fred Skiff

Review of scientific instruments, Vol.89(4), pp.043508-043508

04/01/2018

DOI: 10.1063/1.4995971

PMID: 29716354

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https://doi.org/10.1063/1.4995971View

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Abstract

We present a field programmable gate array (FPGA)-based system that counts photons from laser-induced fluorescence (LIF) on a laboratory plasma. This is accomplished with FPGA-based up/down counters that demodulate the data, giving a background-subtracted LIF signal stream that is updated with a new point as each laser amplitude modulation cycle completes. We demonstrate using the FPGA to modulate a laser at 1 MHz and demodulate the resulting LIF data stream. This data stream is used to calculate an LIF-based measurement sampled at 1 MHz of a plasma ion fluctuation spectrum. Published by AIP Publishing.

Instruments & Instrumentation

Physical Sciences

Physics

Physics, Applied

Science & Technology

Technology

Details

Title: Subtitle: FPGA based demodulation of laser induced fluorescence in plasmas
Creators: Sean W. Mattingly - University of Iowa
Fred Skiff - University of Iowa
Resource Type: Journal article
Publication Details: Review of scientific instruments, Vol.89(4), pp.043508-043508
DOI: 10.1063/1.4995971
PMID: 29716354
NLM abbreviation: Rev Sci Instrum
ISSN: 0034-6748
eISSN: 1089-7623
Publisher: Amer Inst Physics
Number of pages: 5
Grant note: DE-FG02-99ER54543 / US DOE under the NSF-DOE program
Language: English
Date published: 04/01/2018
Academic Unit: Physics and Astronomy
Record Identifier: 9984428672702771

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