Uncooled VLWIR FPA Using Interferometry

We propose a phase II to develop an uncooled very long wave infrared (VLWIR) focal plane array (FPA) using interferometry to be used in space interceptors that require high sensitivity and resolution for locking onto a target hard-body at long range. Based on our successful demonstration of fabricability in phase I, we will complete the development of a full 128x128 FPA using micromachining with the complementary-metal-oxide-semiconductor (CMOS) process for fabrication. Phase II will produce a fully operational FPA by resolving the remaining issues of: (1) fabrication of the micro interferometer structures in the FPA format; (2) incorporation of sufficient on-chip circuits for pixel control while preserving high yield; (3) fabrication of external electronics for array control; and (4) operation of the FPA to evaluate its VLWIR imaging capability. We will carry out a set of specific tasks in a 24-month program that will result in the delivery of a fully operational 128x128 FPA complete with supporting electronics. This program will prepare us to commercialize a set of competitive products based on the interferometer structure for the defense, gas sensing and thermal imaging markets.