Stavros G. Demos
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The organizations/institutes from the scholar's latest article
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Stavros G. Demos has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
Mark R. Kozlowski
At the time of this research, S. G. Demos, M. Staggs, and M. R. Kozlowski were with the Lawrence Livermore National Laboratory, P.O. Box 808, L-411, Livermore, California 94551.M. R. Kozlowski is now with Cierra Photonics, 3640 Westwind Road, Santa Rosa, California 95403
1 shared publicationMike Staggs
At the time of this research, S. G. Demos, M. Staggs, and M. R. Kozlowski were with the Lawrence Livermore National Laboratory, P.O. Box 808, L-411, Livermore, California 94551.M. R. Kozlowski is now with Cierra Photonics, 3640 Westwind Road, Santa Rosa, California 95403
1 shared publication
Latest Publications
- 20 June 2002
- Published by Optica Publishing Group in Applied Optics
- Vol. 41 (18) , 3628-3633
Investigation of processes leading to damage growth in optical materials for large-aperture lasers
Damage growth in optical materials used in large-aperture laser systems is an issue of great importance to determine component lifetime and therefore cost of operation. Small size damage sites tend to grow when exposed to subsequent high-power laser irradiation at 355 nm. An understanding of the photophysical processes associated with damage growth is important to devise mitigation techniques. We examine the role of laser-modified material and cracks formed in the crater of damage pits in the damage growth process using fused-silica and deuterated KDP samples. Experimental results indicate that both of the above-mentioned features can initiate plasma formation at fluences as low as 2 J/cm2. The intensity of the recorded plasma emission remains low for fluences up to approximately 5 J/cm2 but rapidly increases thereafter, accompanied by an increase of the size of the damage crater.
- 20 June 2002
- Published by Optica Publishing Group in Applied Optics
- Vol. 41 (18) , 3628-3633
Investigation of processes leading to damage growth in optical materials for large-aperture lasers
Damage growth in optical materials used in large-aperture laser systems is an issue of great importance to determine component lifetime and therefore cost of operation. Small size damage sites tend to grow when exposed to subsequent high-power laser irradiation at 355 nm. An understanding of the photophysical processes associated with damage growth is important to devise mitigation techniques. We examine the role of laser-modified material and cracks formed in the crater of damage pits in the damage growth process using fused-silica and deuterated KDP samples. Experimental results indicate that both of the above-mentioned features can initiate plasma formation at fluences as low as 2 J/cm2. The intensity of the recorded plasma emission remains low for fluences up to approximately 5 J/cm2 but rapidly increases thereafter, accompanied by an increase of the size of the damage crater.