Advancements in Laser Research Lead to Better Stand-off Detection [Image 1 of 2]

FORT BELVOIR, VA, UNITED STATES

05.24.2016

Courtesy Photo

Defense Threat Reduction Agency's Chemical and Biological Technologies Department

Two-dimensional far-field intensity distribution (normalized) of the tapered QCL with plasmonic collimator, measured using a mid-infrared microbolometer array (160 x 120 pixels) with no optics placed directly in front of the laser facet. In (a) and (b), the pump current is, respectively, 1.5 Ith and 2.5 Ith, where Ith is the threshold current of the device. The angles are computed from
the known pixel pitch (52 μm) and the distance between the facet and the sensor (14 mm). Images courtesy of Professor Federico Capasso and Dr. Patrick Rauter from Harvard University, under DTRA-funded research.

• Date Taken: 05.24.2016
• Date Posted: 05.24.2016 10:06
• Photo ID: 2608294
• VIRIN: 052416-A-AB123-001
• Resolution: 1467x605
• Size: 120.98 KB
• Location: FORT BELVOIR, VA, US