Power meter for optical efficiency measurements of laser-induced plasmas

A power meter was constructed to measure the power being deposited in transient laser-induced plasmas (LIP). The design rejects the radiation scattered from the laser beam by the LIP and that transmitted past the LIP. The power meter is constructed from a small metal-capped flask placed in an evacua...

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Veröffentlicht in:Applied Optics 1987-10, Vol.26 (19), p.4319-4322
Hauptverfasser: Borucki, William J., Mckay, Christopher P., Rogers, Robert S., Boac, Donald S., Duong, Nam D.
Format: Artikel
Sprache:eng
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Zusammenfassung:A power meter was constructed to measure the power being deposited in transient laser-induced plasmas (LIP). The design rejects the radiation scattered from the laser beam by the LIP and that transmitted past the LIP. The power meter is constructed from a small metal-capped flask placed in an evacuated chamber. The steady-state heat production in the flask is determined from measurements of the temperature gradient on a thermal resistance connecting the top of the flask with a heat sink. The design worked well and should be applicable to a wide variety of situations if the dimensions of the system are adjusted to compensate for power levels substantially different from those used here.
ISSN:0003-6935
1559-128X
1539-4522
DOI:10.1364/AO.26.004319