Terahertz radiations on target materials irradiated by an ultra-intense laser pulse

Author

Lee, Kitae ; Mun, Jungho ; Lee, Yong Woo ; Cha, Yong Ho ; Ahn, Pil Dong ; Park, Seong Hee ; Yea, Kwon-Hae ; Lee, Byung Cheol ; Jeong, Young Uk

Author_Institution

Quantum Opt. Div., Korea Atomic Energy Res. Inst., Daejeon

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

1

Abstract

Terahertz (THz) radiations from thin foil targets, such as aluminum and Mylar films irradiated by a 30 fs Ti:Sapphire laser pulse with an intensity of 2x10¹⁸ W/cm² were investigated. The measured THz radiation shows interesting behaviors on the target materials, metal and insulator targets when compared with x-ray signals, which were also measured by using an x-ray photodiode with a 300 mum-thick aluminum filter. The polarization of the THz radiations was also found to have p-polarization as same as that of the incident laser pulse.

Keywords

aluminium; laser beam effects; metallic thin films; submillimetre wave detectors; submillimetre wave generation; Al; Mylar film; aluminum film; polarization; size 300 mum; terahertz radiations; thin foil targets; ultra-intense laser pulse irradiation; Aluminum; Filters; Inorganic materials; Insulation; Metal-insulator structures; Optical materials; Optical pulses; Photodiodes; Polarization; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on

Conference_Location

Pasadena, CA

Print_ISBN

978-1-4244-2119-0

Electronic_ISBN

978-1-4244-2120-6

Type

conf

DOI

10.1109/ICIMW.2008.4665454

Filename

4665454