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Author Singhal, H. ♦ Naik, P. A. ♦ Chakera, J. A. ♦ Chakravarty, U. ♦ Vora, H. S. ♦ Srivastava, A. K. ♦ Mukherjee, C. ♦ Navathe, C. P. ♦ Deb, S. K. ♦ Gupta, P. D. ♦ Ganeev, R. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ATOMIC AND MOLECULAR PHYSICS ♦ HARMONIC GENERATION ♦ LASER RADIATION ♦ LASER-PRODUCED PLASMA ♦ NANOSTRUCTURES ♦ PARTICLES ♦ PLUMES ♦ PULSES ♦ SILVER ♦ SOLID STATE LASERS ♦ ELECTROMAGNETIC RADIATION ♦ ELEMENTS ♦ FREQUENCY MIXING ♦ LASERS ♦ METALS ♦ PLASMA ♦ RADIATIONS ♦ TRANSITION ELEMENTS
Abstract The results of the experimental study of high-order harmonic generation (HHG) from the interaction of 45-fs Ti:sapphire laser pulses with plasma plumes of Ag nanoparticles produced in situ are presented in this article. The nanoparticles were generated by the interaction of 300-ps, 20-mJ laser pulses with bulk silver targets at an intensity of {approx}1x10{sup 13} W/cm{sup 2}. The spectral characteristics of the HHG from nanoparticles produced in situ are compared with the HHG from monoparticle plasma plumes and with the HHG from preformed nanoparticle-containing plasma plumes. The cutoff harmonic order generated using the in situ silver nanoparticles is at the 21st harmonic order.
ISSN 10502947
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-10-15
Publisher Place United States
Journal Physical Review. A
Volume Number 82
Issue Number 4


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