This article describes how the far-field radiation distribution and power varies with the geometrical parameters of immersion lenses made from silicon (n¯=3.4) and chalcogenide glass (n¯=2.4) mated with LEDs (λ=3.4µm) based on indium antimonide (n¯=3.5) and estimates the efficiency of using such devices in miniature optical systems.
© 2012 OSA
Original Manuscript: January 18, 2012
Published: September 28, 2012
N. V. Zotova, S. A. Karandeshev, B. A. Matveev, M. A. Remennyĭ, and N.M. Stus’, "Radiation distribution of 3.4-µm immersion LEDs in the far field," J. Opt. Technol. 79, 571-575 (2012)