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This report describes tasks comparing the simulated performance levels of infrared (IR) sensing systems in detecting, recognizing, and identifying (DRI) targets using the Night Vision Integrated Performance Model (NV-IPM) version 1.1. Both mid-wave infrared (MWIR) and long-wave infrared (LWIR) systems, chosen to represent the current state-of-theart, were analyzed across various environmental conditions. These states included a range of both man-made and natural obscurants, selected to simulate atmospheric conditions commonly experienced throughout the world. This report investigates the validity of the NV-IPM, down-selects top-performing systems from an original set, and provides detailed performance analysis of these best-of-breed systems in various environmental scenarios.Six sensing systems, Indium-Antimonide (InSb) MWIR, Mercury-Cadmium-Telluride (MCT) MWIR, nBn InSb MWIR, Quantum Well Infrared Photodetector (QWIP) LWIR, uncooled LWIR, and dual-band MCT MWIR/LWIR system, were evaluated against a variety of environmental variations. Specifications for the IR systems were obtained from manufacturers or relevant published literature. Simulation results indicated the nBn InSb MWIR system as the strongest-performing system in many of the tests. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/09/2015 Terms of Use: http://spiedl.org/terms Proc. of SPIE Vol. 9452 94520O-2 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/09/2015 Terms of Use: http://spiedl.org/terms Proc. of SPIE Vol. 9452 94520O-6 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/09/2015 Terms of Use: http://spiedl.org/terms

The e x p e r i m e n t a l r e s u l t s on i n t e r f e r om e t r i c B r a g g C e l l Spectrum Analyzer a r e indeed encouraging. An experiment w a s p e r f o r m e d using a 5 mW HeNe l a s e r in Mach-Zehnder i n t e r f e r o m e t r i c Configuration. A l i n e a r c h i r p w a s u s e d to g e n e r a t e the r e f e r e n c e b e a m . W e w e r e a b l e to obserw58 dB Dynamic Range f o r CW and 54 d B DR f o r 5ps pulsed signals with 100% Probability of I n t e r c e p t and less than 1 p s T i m e of A r r i v a l a c c u r a c y . Pseudo Noise Sequence w a s a l s o t r i e d i n a n o t h e r e x p e r i m e n t with good r e s u l t s at reduced s y s t e m bandwidth.

A slotted line was used to measure the high-frequency dielectric constant and loss tangent of several electro-optic crystals useful for wide-band laser modulator applications. Dielectric measurements were made at 0.1, 0.3, 1.0, and 2.0 GHz.