Plasmonic CdZnO nanoparticles for enhanced GaAs-based quantum well intersubband absorption

E. Martínez Castellano; J. Tamayo-Arriola; M. Montes Bajo; A. Gonzalo; L. Stanojević; J. M. Ulloa; O. Klymov; J. Yeste; S. Agouam; E. Muñoz; V. Muñoz-Sanjosé; A. Hierro

doi:10.1117/12.2596879

1 August 2021 Plasmonic CdZnO nanoparticles for enhanced GaAs-based quantum well intersubband absorption

E. Martínez Castellano, J. Tamayo-Arriola, M. Montes Bajo, A. Gonzalo, L. Stanojević, J. M. Ulloa, O. Klymov, J. Yeste, S. Agouam, E. Muñoz, V. Muñoz-Sanjosé, A. Hierro

Author Affiliations +

Proceedings Volume 11797, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX; 117971Q (2021) https://doi.org/10.1117/12.2596879
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

In this work we propose the use of self-assembled CdZnO nanoparticles as a route to improve power absorption in midinfrared GaAs-based quantum well infrared photodetectors (QWIPs). We experimentally demonstrate low temperature growth of CdZnO nanoparticles on GaAs and characterize their plasmonic response in the mid-IR. Computational analysis of the plasmonic resonances coupled to intersubband transitions in GaAs quantum wells show that intersubband absorption at normal incidence, forbidden by quantum selection rules, can be obtained. Gains in the quantum well power absorption as high as 5.5 are also reported.

Conference Presentation

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E. Martínez Castellano, J. Tamayo-Arriola, M. Montes Bajo, A. Gonzalo, L. Stanojević, J. M. Ulloa, O. Klymov, J. Yeste, S. Agouam, E. Muñoz, V. Muñoz-Sanjosé, and A. Hierro "Plasmonic CdZnO nanoparticles for enhanced GaAs-based quantum well intersubband absorption", Proc. SPIE 11797, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX, 117971Q (1 August 2021); https://doi.org/10.1117/12.2596879

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