A zero-Focal-Length superlens for QWIPs and other infrared detectors

Thomas Antoni; Mathieu Carras; Vincent Berger; Pierrick Guiset; Alfredo De Rossi

doi:10.1117/12.853526

3 May 2010 A zero-Focal-Length superlens for QWIPs and other infrared detectors

Thomas Antoni, Mathieu Carras, Vincent Berger, Pierrick Guiset, Alfredo De Rossi

Proceedings Volume 7660, Infrared Technology and Applications XXXVI; 766023 (2010) https://doi.org/10.1117/12.853526
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Most of optoelectronic semiconductor devices, especially quantum well based ones, make use of a grating to couple the active layer to free space. To go beyond the simplistic coupling role of the grating we propose a specifically designed metal-dielectric corrugated interface that squeezes normal incidence light in subwalength scale, taking advantage of the very active work achieved over the last few years in near field electromagnetism. This structure coherently combines three surface plasmon engineering tools: Bragg reflection, microcavity, and grating coupling. These electromagnetic properties are demonstrated experimentally in the gigahertz regime, as a function of design parameters. Light squeezing is observed down to a quarter of a wavelength.

Citation Download Citation

Thomas Antoni, Mathieu Carras, Vincent Berger, Pierrick Guiset, and Alfredo De Rossi "A zero-Focal-Length superlens for QWIPs and other infrared detectors", Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 766023 (3 May 2010); https://doi.org/10.1117/12.853526

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