A moving-mirror Michelson interferometer for probing transient plasma plumes

Nai Ho Cheung; Lun Chiu Ng; Shu Chi Chen

doi:10.1063/1.1144400

A moving-mirror Michelson interferometer for probing transient plasma plumes

Nai Ho Cheung^*, Lun Chiu Ng, Shu Chi Chen

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

1 Citation (Scopus)

Abstract

A modified Michelson interferometer was used to probe the electron density in plasma plumes produced by pulsed XeCl laser ablation of Al₂O ₃. With one of the mirrors of the interferometer translating steadily, the phase angle of the sinusoidal interference signal was tracked and the XeCl laser was fired whenever the detected phase angle matched a predefined value. The transient interference waveform produced by the plasma plume was then synchronously captured. This moving-mirror interferometer features minimal vibration isolation, fast response time (∼10 ns), powerful noise rejection, and a detection limit of a thousandth of a fringe shift, or ∼10¹⁵ electrons per cm³ for mm size plumes.

Original language	English
Pages (from-to)	49-51
Number of pages	3
Journal	Review of Scientific Instruments
Volume	64
Issue number	1
DOIs	https://doi.org/10.1063/1.1144400
Publication status	Published - 1993

Scopus Subject Areas

Instrumentation

Access to Document

10.1063/1.1144400

Cite this

@article{06fb9c8fbf4c468185deea555949ff23,

title = "A moving-mirror Michelson interferometer for probing transient plasma plumes",

abstract = "A modified Michelson interferometer was used to probe the electron density in plasma plumes produced by pulsed XeCl laser ablation of Al2O 3. With one of the mirrors of the interferometer translating steadily, the phase angle of the sinusoidal interference signal was tracked and the XeCl laser was fired whenever the detected phase angle matched a predefined value. The transient interference waveform produced by the plasma plume was then synchronously captured. This moving-mirror interferometer features minimal vibration isolation, fast response time (∼10 ns), powerful noise rejection, and a detection limit of a thousandth of a fringe shift, or ∼1015 electrons per cm3 for mm size plumes.",

author = "Cheung, {Nai Ho} and Ng, {Lun Chiu} and Chen, {Shu Chi}",

note = "This work was supported by research grants administered by the Hong Kong Baptist College and the Research Council of the University and Polytechnic Grants Committee of Hong Kong. ",

year = "1993",

doi = "10.1063/1.1144400",

language = "English",

volume = "64",

pages = "49--51",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "1",

}

TY - JOUR

T1 - A moving-mirror Michelson interferometer for probing transient plasma plumes

AU - Cheung, Nai Ho

AU - Ng, Lun Chiu

AU - Chen, Shu Chi

N1 - This work was supported by research grants administered by the Hong Kong Baptist College and the Research Council of the University and Polytechnic Grants Committee of Hong Kong.

PY - 1993

Y1 - 1993

N2 - A modified Michelson interferometer was used to probe the electron density in plasma plumes produced by pulsed XeCl laser ablation of Al2O 3. With one of the mirrors of the interferometer translating steadily, the phase angle of the sinusoidal interference signal was tracked and the XeCl laser was fired whenever the detected phase angle matched a predefined value. The transient interference waveform produced by the plasma plume was then synchronously captured. This moving-mirror interferometer features minimal vibration isolation, fast response time (∼10 ns), powerful noise rejection, and a detection limit of a thousandth of a fringe shift, or ∼1015 electrons per cm3 for mm size plumes.

AB - A modified Michelson interferometer was used to probe the electron density in plasma plumes produced by pulsed XeCl laser ablation of Al2O 3. With one of the mirrors of the interferometer translating steadily, the phase angle of the sinusoidal interference signal was tracked and the XeCl laser was fired whenever the detected phase angle matched a predefined value. The transient interference waveform produced by the plasma plume was then synchronously captured. This moving-mirror interferometer features minimal vibration isolation, fast response time (∼10 ns), powerful noise rejection, and a detection limit of a thousandth of a fringe shift, or ∼1015 electrons per cm3 for mm size plumes.

UR - http://www.scopus.com/inward/record.url?scp=36449008721&partnerID=8YFLogxK

U2 - 10.1063/1.1144400

DO - 10.1063/1.1144400

M3 - Journal article

AN - SCOPUS:36449008721

SN - 0034-6748

VL - 64

SP - 49

EP - 51

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 1

ER -

A moving-mirror Michelson interferometer for probing transient plasma plumes

Abstract

Scopus Subject Areas

Access to Document

Other files and links

Fingerprint

Cite this