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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 13, Iss. 9 — Sep. 1, 1988
  • pp: 713–715

Observation of the transient expansion of heated surfaces by picosecond photothermal deflection spectroscopy

Joshua E. Rothenberg  »View Author Affiliations


Optics Letters, Vol. 13, Issue 9, pp. 713-715 (1988)
http://dx.doi.org/10.1364/OL.13.000713


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Abstract

The observation of the picosecond thermal expansion of an absorbing surface after a short heating pulse is reported for the first time to my knowledge. The measurement was performed on Si by adapting the method of photothermal deflection to a pump–probe technique using 1-psec laser pulses. This was achieved by separating out a novel deflection effect due to the gradient in the near-surface optical constants. The results are compared to a thermo-elastic model, and good agreement is found.

© 1988 Optical Society of America

History
Original Manuscript: March 30, 1988
Manuscript Accepted: June 6, 1988
Published: September 1, 1988

Citation
Joshua E. Rothenberg, "Observation of the transient expansion of heated surfaces by picosecond photothermal deflection spectroscopy," Opt. Lett. 13, 713-715 (1988)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-13-9-713

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