Nondestructive Sensor Using Microwaves From Laser Plasma by Subnanosecond Laser Pulses
Nondestructive Sensor Using Microwaves From Laser Plasma by Subnanosecond Laser Pulses
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DOI：
10.1109/lgrs.2009.2024176
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发表时间：
2009-08
影响因子：
4.8
通讯作者：
H. Nakajima;Y. Shimada;T. Somekawa;M. Fujita;K. Tanaka
中科院分区：
文献类型：
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作者：
H. Nakajima;Y. Shimada;T. Somekawa;M. Fujita;K. Tanaka
传统的探地雷达 (GPR) 需要大孔径天线或大跨度测量来精确测量远程位置。我们提出激光驱动探地雷达（LGPR）作为一种新的检测方法。 LGPR 使用激光产生的等离子体产生的微波作为远程发射器，可以使用紧凑的仪器测量远程位置。我们进行了数值模拟来研究激光等离子体微波的辐射机制，并确认了适合 LGPR 的激光脉冲宽度。亚纳秒脉冲激光器实验阐明了 LGPR 的可行性和探测性能。
Conventional ground-penetrating radar (GPR) requires large-aperture antennas or long-span measurements to survey a remote location precisely. We propose a laser-driven GPR (LGPR) as a new detection method. LGPR uses microwaves from laser-produced plasmas as remote transmitters and can survey a remote location using a compact instrument. We performed numerical simulations to investigate the radiation mechanism of microwaves from laser plasmas and confirmed the pulsewidth of the laser suitable for LGPR. Experiments with subnanosecond pulse lasers clarified the feasibility and detection performance of LGPR.