Premium
Distributed Feedback Laser: Soft‐Lithographed Up‐Converted Distributed Feedback Visible Lasers Based on CdSe–CdZnS–ZnS Quantum Dots (Adv. Funct. Mater. 2/2012)
Author(s) -
Todescato Francesco,
Fortunati Ilaria,
Gardin Samuele,
Garbin Eleonora,
Collini Elisabetta,
Bozio Renato,
Jasieniak Jacek J.,
Della Giustina Gioia,
Brusatin Giovanna,
Toffanin Stefano,
Signorini Raffaella
Publication year - 2012
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201290009
Subject(s) - materials science , quantum dot , lasing threshold , optoelectronics , laser , quantum dot laser , optics , absorption (acoustics) , semiconductor laser theory , semiconductor , wavelength , physics , composite material
An up‐converted distributed feedback laser prototype is realized using CdSe‐CdZnS‐ZnS quantum dots as the optical gain material, as reported by Raffaella Signorini and coworkers on page 337 . The incorporation of quantum dots within a zirconia matrix affords a quantum dot ink that, when deposited on a soft‐lithographed grating, forms an all‐solution processed microcavity laser. Optical pumping of the device in the one‐photon (UV) or two‐photon (NIR) absorption regions of the quantum dots enables efficient lasing to be achieved at visible wavelengths.