Three-photon excitation of quantum dots with a telecom-band ultrafast fiber laser

We demonstrate three-photon excitation in quantum dots with a mode-locked fiber laser operating in the telecommunications band. We compare spectra and intensity dependence of fluorescence from one- and threephoton excitation of commercially available 640-nm quantum dots, using a 372-nm diode laser for one-photon excitation and 116-fs pulses from a mode-locked fiber laser with a center wavelength of 1,575 nm for three-photon excitation.We demonstrate three-photon excitation in quantum dots with a mode-locked fiber laser operating in the telecommunications band. We compare spectra and intensity dependence of fluorescence from one- and threephoton excitation of commercially available 640-nm quantum dots, using a 372-nm diode laser for one-photon excitation and 116-fs pulses from a mode-locked fiber laser with a center wavelength of 1,575 nm for three-photon excitation.
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Journal Title

Applied Physics B

Volume

117

Issue

DOI

https://doi.org/10.1007/s00340-014-5924-9

Copyright Statement

© 2014 Springer Berlin / Heidelberg. This is an electronic version of an article published in Applied Physics B: Lasers and Optics, December 2014, Volume 117, Issue 4, pp 1035–1039. Applied Physics B: Lasers and Optics is available online at: http://link.springer.com/ with the open URL of your article.

Subject

Nonlinear Optics and Spectroscopy

Optical Physics

Electrical and Electronic Engineering

Mechanical Engineering

Publication URI

http://hdl.handle.net/10072/65269

Collection

Journal articles