Nondestructive Sensor Using Microwaves from a Laser Plasma

Ground penetrating radar (GPR) is a nondestructive sensor technology for detecting underground objects. GPR requires large-aperture antennas to survey a remote location precisely because of the expansion of microwaves. We propose a laser-driven GPR (LGPR) that uses microwave radiation from a laser p...

Full description

Saved in:
Bibliographic Details
Published inPlasma and Fusion Research Vol. 4; p. 003
Main Authors NAKAJIMA, Hirotomo, SHIMADA, Yoshinori, SOMEKAWA, Toshihiro, FUJITA, Masayuki, TANAKA, Kazuo A.
Format Journal Article
LanguageEnglish
Published The Japan Society of Plasma Science and Nuclear Fusion Research 2009
Subjects
laser plasma
nondestructive sensing
rf emission
subnanosecond laser
Online AccessGet full text

Cover

More Information
Summary:Ground penetrating radar (GPR) is a nondestructive sensor technology for detecting underground objects. GPR requires large-aperture antennas to survey a remote location precisely because of the expansion of microwaves. We propose a laser-driven GPR (LGPR) that uses microwave radiation from a laser plasma to achieve remote sensing. LGPR is expected to provide good spatial resolution with a small antenna. We selected a subnanosecond laser pulse as a suitable radiator for LGPR (L-S band). Experimental results show that the LGPR system can detect aluminum disks buried in sand.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.4.003