Picosecond E-field CARS; A diagnostic technique for measurement of electric field in pulsed plasmas

B. Goldberg; S. O'Byrne; W. R. Lempert

doi:10.2514/6.2012-240

Picosecond E-field CARS; A diagnostic technique for measurement of electric field in pulsed plasmas

B. Goldberg^*, S. O'Byrne, W. R. Lempert

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

Abstract

Proof-of-concept measurements are presented demonstrating an optical four wave mixing based electric field diagnostic with sub-nsec temporal resolution. The second harmonic output from an ~30 psec pulse duration mode-locked, cavity dumped Nd:YAG laser is input to an H₂ stimulated Raman shifting (SRS) cell, which produces the required Stokes beam which is automatically overlapped in space and time with the pump. Re-focusing the collinear pump/Stokes beam into an H₂ static cell with applied sub-breakdown DC electric field produces an IR beam at 2.406 microns, corresponding to the H₂ J=1 fundamental vibrational frequency. Sensitivity of .8 kV/cm is demonstrated at pressures as low as 100 Torr.

Original language	English
DOIs	https://doi.org/10.2514/6.2012-240
Publication status	Published - 2012
Externally published	Yes
Event	50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States Duration: 9 Jan 2012 → 12 Jan 2012

Conference

Conference	50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Country/Territory	United States
City	Nashville, TN
Period	9/01/12 → 12/01/12

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title = "Picosecond E-field CARS; A diagnostic technique for measurement of electric field in pulsed plasmas",

abstract = "Proof-of-concept measurements are presented demonstrating an optical four wave mixing based electric field diagnostic with sub-nsec temporal resolution. The second harmonic output from an ~30 psec pulse duration mode-locked, cavity dumped Nd:YAG laser is input to an H2 stimulated Raman shifting (SRS) cell, which produces the required Stokes beam which is automatically overlapped in space and time with the pump. Re-focusing the collinear pump/Stokes beam into an H2 static cell with applied sub-breakdown DC electric field produces an IR beam at 2.406 microns, corresponding to the H2 J=1 fundamental vibrational frequency. Sensitivity of .8 kV/cm is demonstrated at pressures as low as 100 Torr.",

author = "B. Goldberg and S. O'Byrne and Lempert, {W. R.}",

year = "2012",

doi = "10.2514/6.2012-240",

language = "English",

note = "50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition ; Conference date: 09-01-2012 Through 12-01-2012",

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T1 - Picosecond E-field CARS; A diagnostic technique for measurement of electric field in pulsed plasmas

AU - Goldberg, B.

AU - O'Byrne, S.

AU - Lempert, W. R.

PY - 2012

Y1 - 2012

N2 - Proof-of-concept measurements are presented demonstrating an optical four wave mixing based electric field diagnostic with sub-nsec temporal resolution. The second harmonic output from an ~30 psec pulse duration mode-locked, cavity dumped Nd:YAG laser is input to an H2 stimulated Raman shifting (SRS) cell, which produces the required Stokes beam which is automatically overlapped in space and time with the pump. Re-focusing the collinear pump/Stokes beam into an H2 static cell with applied sub-breakdown DC electric field produces an IR beam at 2.406 microns, corresponding to the H2 J=1 fundamental vibrational frequency. Sensitivity of .8 kV/cm is demonstrated at pressures as low as 100 Torr.

AB - Proof-of-concept measurements are presented demonstrating an optical four wave mixing based electric field diagnostic with sub-nsec temporal resolution. The second harmonic output from an ~30 psec pulse duration mode-locked, cavity dumped Nd:YAG laser is input to an H2 stimulated Raman shifting (SRS) cell, which produces the required Stokes beam which is automatically overlapped in space and time with the pump. Re-focusing the collinear pump/Stokes beam into an H2 static cell with applied sub-breakdown DC electric field produces an IR beam at 2.406 microns, corresponding to the H2 J=1 fundamental vibrational frequency. Sensitivity of .8 kV/cm is demonstrated at pressures as low as 100 Torr.

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U2 - 10.2514/6.2012-240

DO - 10.2514/6.2012-240

M3 - Paper

AN - SCOPUS:84872372085

T2 - 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

Y2 - 9 January 2012 through 12 January 2012

ER -

Picosecond E-field CARS; A diagnostic technique for measurement of electric field in pulsed plasmas

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