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Dive into the research topics where Stavros G. Demos is active.

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Featured researches published by Stavros G. Demos.


Nonlinear Optics: Materials, Fundamentals and Applications (2004), paper WC5 | 2004

Investigation of nonlinear effects leading to laser-induced damage initiation in KDP and DKDP crystals

Paul Philip Demange; Raluca A. Negres; Christopher W. Carr; H. B. Radousky; Stavros G. Demos

Laser-induced damage initiation in KDP and DKDP crystal plates using single and multi-wavelength irradiation as a function of laser parameters is investigated. Pre-exposure of the material increases its damage threshold by two different pathways.


Nonlinear Optics: Materials, Fundamentals and Applications (2002), paper WC6 | 2002

Investigation of White Light Emission Observed During Damage in the Bulk of DKDP Crystals

Christopher Carr; H. B. Radousky; M. Staggs; Alexander M. Rubenchik; Michael D. Feit; Stavros G. Demos

We have investigated the flash of light that accompanies laser damage using time-resolved spectroscopy. Damage events were initiated in the bulk of DKDP and fused silica with 355-nm, 3-ns pulsed radiation. Spectra from the accompanying flash were recorded in the 200-500 nm wavelength range with 10-ns temporal resolution. Ten ns following damage initiation, the spectra were found to be roughly blackbody with temperatures on the order of 5000-7000 K. The observed temperatures and cooling rates can be related to the size and electron density of the plasma


Archive | 2002

Near-infrared spectroscopic tissue imaging for medical applications

Stavros G. Demos; Michael C. Staggs


Physical Review Letters | 2003

Electron- or hole-assisted reactions of H defects in hydrogen-bonded KDP.

C. S. Liu; Nicholas Kioussis; Stavros G. Demos; H. B. Radousky


Archive | 2003

Autofluorescence detection and imaging of bladder cancer realized through a cystoscope

Stavros G. Demos; Ralph W. deVere White


Archive | 2005

Radiation produced by femtosecond laserplasma interaction during dielectric breakdown

Christopher W. Carr; Michael D. Feit; Alexander M. Rubenchik; P. D. Mange; S. O. Kucheyev; Michael D. Shirk; H. B. Radousky; Stavros G. Demos


Archive | 2008

103101 Comparison of resonant-phonon-assisted terahertz quantum-cascade lasers with one-well injector and three-well module (5 pages)

Baohong Yuan; John Gamelin; Quing Zhu; Paul Philip Demange; Christopher W. Carr; Raluca A. Negres; H. B. Radousky; Stavros G. Demos; T. S. Herng; S. P. Lau; Siu Fung Yu; Stephen H. Tsang; K. S. Teng; Jun Chen; Yuji Kuwamura; Minoru Yamada; Ryuichi Okamoto; Takeshi Kanai; Hesham Fares; O. Van Overschelde; F. Hamadi; Axel Hemberg; Rony Snyders; M. Wautelet; Melvyn A. Shapiro; Ksenia R. Samokhvalova; Jagadishwar R. Sirigiri; Richard J. Temkin; Gennady Shvets; Nek M. Shaikh


Archive | 2004

Temperature Measurements of Laser Induced Plasma in Wide Gap Dielectrics

H. B. Radousky; Christopher W. Carr; Rubenchik; Michael D. Feit; Stavros G. Demos


Archive | 2004

Laser-induced breakdown in KDP/DKDP crystals using variable dual wavelength excitation

Paul Philip Demange; H. B. Radousky; Stavros G. Demos


Archive | 2003

Ab initio electronic structure calculations for charged states of hydrogen point defects in KDP

Ching Liu; Nicholas Kioussis; Stavros G. Demos; H. B. Radousky

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H. B. Radousky

Lawrence Livermore National Laboratory

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Christopher W. Carr

Lawrence Livermore National Laboratory

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Michael C. Staggs

Lawrence Livermore National Laboratory

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Michael D. Feit

Lawrence Livermore National Laboratory

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Nicholas Kioussis

California State University

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Alexander M. Rubenchik

Lawrence Livermore National Laboratory

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Raluca A. Negres

Lawrence Livermore National Laboratory

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Angela Hohl

Air Force Research Laboratory

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