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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 11 — Nov. 26, 2007

Effectiveness of recycling light in ultra-bright short-arc discharge lamps

Asher Malul, Doron Nakar, Daniel Feuermann, and Jeffrey M. Gordon  »View Author Affiliations


Optics Express, Vol. 15, Issue 21, pp. 14194-14201 (2007)
http://dx.doi.org/10.1364/OE.15.014194


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Abstract

Recycling light back into a plasma lamp’s radiant zone can enhance its radiance. Measurements are reported for the effectiveness, spectral properties and modified plasma radiance maps that result from light recycling with a specular hemispherical mirror in commercial 150 W ultra-bright Xenon short-arc discharge lamps, motivated by projection, biomedical and high-temperature furnace applications. For certain spectral windows and plasma arc regions, radiance can be heightened by up to 70%. However, the overall light recycling efficiency is reduced to about half this value due to lamp geometry. The manner in which light-plasma interactions affect light recycling efficacy is also elucidated.

© 2007 Optical Society of America

OCIS Codes
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(230.6080) Optical devices : Sources
(350.5400) Other areas of optics : Plasmas

ToC Category:
Optical Devices

History
Original Manuscript: August 1, 2007
Revised Manuscript: September 10, 2007
Manuscript Accepted: September 11, 2007
Published: October 12, 2007

Virtual Issues
Vol. 2, Iss. 11 Virtual Journal for Biomedical Optics

Citation
Asher Malul, Doron Nakar, Daniel Feuermann, and Jeffrey M. Gordon, "Effectiveness of recycling light in ultra-bright short-arc discharge lamps," Opt. Express 15, 14194-14201 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-15-21-14194


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References

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