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arXiv · 1301.6583

Coherent absorption and enhanced photoluminescence in thin layers of nanorods

Giuseppe Pirruccio·Gabriel Lozano·Yichen Zhang·Said R. K. Rodriguez·Raquel Gomes·Zeger Hens·Jaime Gomez Rivas
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Abstract

We demonstrate a large light absorptance (80%) in a nanometric layer of quantum dots in rods (QRs) with a thickness of 23 nm. This behavior is explained in terms of the coherent absorption by interference of the light incident at a certain angle onto the very thin QR layer. We exploit this coherent light absorption to enhance the photoluminescent emission from the QRs. Up to a seven- and fivefold enhancement of the photoluminescence is observed for p- and s-polarized incident light, respectively.

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Giuseppe Pirruccio, Gabriel Lozano, Yichen Zhang, Said R. K. Rodriguez, Raquel Gomes, Zeger Hens, Jaime Gomez Rivas. 2013-01-28. Coherent absorption and enhanced photoluminescence in thin layers of nanorods. https://doi.org/10.1103/physrevb.85.165455

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