Design and fabrication of 2xD light emitting device arrays for IR scene projection

Naresh C. Das; George J. Simonis; John L. Bradshaw; Arnie C. Goldberg; Neelam Gupta

doi:10.1117/12.564347

4 August 2004 Design and fabrication of 2xD light emitting device arrays for IR scene projection

Naresh C. Das, George J. Simonis, John L. Bradshaw, Arnie C. Goldberg, Neelam Gupta

Proceedings Volume 5408, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing IX; (2004) https://doi.org/10.1117/12.564347
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

We at Army Research Laboratory (ARL) have developed 2xD light emitting device (LED) arrays for possible application in infrared (IR) scene projection experiments. These LEDs emit light in the 3-4 μm wavelength region with peak at 3.75 μm when operate at room temperature. The epitaxial structure for LED was grown on GaSb substrate by molecular beam epitaxial (MBE) technology. Mesa sizes ranging from 30-100 μm diameters were used in the device fabrication. By comparing with radiation from blackbody source, we found that the brightness temperature of the infrared LED is in the range of 300-600 K. We obtained very good uniformity in device current and voltage (I-V) characteristics. This paper discusses the LED array design, fabrication and evaluation results.

Citation Download Citation

Naresh C. Das, George J. Simonis, John L. Bradshaw, Arnie C. Goldberg, and Neelam Gupta "Design and fabrication of 2xD light emitting device arrays for IR scene projection", Proc. SPIE 5408, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing IX, (4 August 2004); https://doi.org/10.1117/12.564347

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