Third Harmonic Generation Enhanced By Defective Plasma Bragg Gratings

Journal Article · Sat Jul 25 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3204539· OSTI ID:21344326

Jun, Zheng ^[1]; Sheng, Z -M; Zhang, J ^[1]; Mima, K ^[2]

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1. Department of physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
2. Institute of Laser Engineering, Osaka University, Osaka 565-0871 (Japan)

Plasma Bragg grating is composed of periodic variations of plasma and dielectric or vacuum. The characteristic of the bandgap of the plasma Bragg grating without or with defect is studied by theory and particle-in-cell (PIC) simulation. A one-dimensional (1D) defective plasma Bragg grating is proposed to increase the conversion efficiency of the third harmonic of the incident laser pulse as compared with a simple plane target. In such a structure, the high laser field intensity and high plasma density are produced by laser localization in defect states, from which the third harmonic is enhanced by one order of magnitude.

• OSTI ID: 21344326
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1153; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
CONVERSION
DEFECTS
DIELECTRIC MATERIALS
EFFICIENCY
ELECTROMAGNETIC RADIATION
FREQUENCY MIXING
GRATINGS
HARMONIC GENERATION
LASER RADIATION
LASER-PRODUCED PLASMA
MATERIALS
PERIODICITY
PLASMA
PLASMA DENSITY
PLASMA SIMULATION
PULSES
RADIATIONS
SIMULATION
VARIATIONS