Compact, high average power, fiber-pumped terahertz source for active real-time imaging of concealed objects

被引：61

作者：

Creeden, Daniel ^{[1
]}

McCarthy, John C. ^{[1
]}

Ketteridge, Peter A. ^{[1
]}

Schunemann, Peter G. ^{[1
]}

Southward, Timothy ^{[1
]}

Komiak, James J. ^{[1
]}

Chicklis, Evan P. ^{[1
]}

机构：

[1] BAE Syst Elect & Integrated Solut, Nashua, NH 03061 USA

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 10期

关键词：

D O I：

10.1364/OE.15.006478

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have modeled and demonstrated a scalable, compact, fiber-pumped terahertz source based on difference frequency mixing (DFM) in zinc germanium phosphide (ZGP) capable of producing high average and peak-power pulses. Currently, our terahertz source produces 2mW of average THz power and > 40W of peak power with sub-nanosecond pulses at a repetition rate of 100kHz in the range of 2-3THz without cryogenic cooling or ultra-fast optics. This high average power laser-based terahertz output enables the real-time imaging of concealed objects using an off-the-shelf uncooled microbolometer focal-plane array. With this THz system, we have imaged objects obscured inside in a common shipping envelope, demonstrating the potential of compact laser-based terahertz sources for use in security screening applications. (C) 2007 Optical Society of America

引用

页码：6478 / 6483

页数：6

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