A path to practical Solar Pumped Lasers via Radiative Energy Transfer
Name
Reusswig_Path to practical.pdf
Size
594.24 KB
Format
Adobe PDF
Checksum (MD5)
0d2a4f96ca7b160ddb5435c1592fe582
Author(s)
Reusswig, Philip D.
Nechayev, Sergey
Hwang, Gyu Weon
Bawendi, Moungi G.
Baldo, Marc. A.
Rotschild, Carmel
Scherer, Jennifer Marie
Baldo, Marc A.
Date Issued
October 2015
Journal
Scientific Reports
Publisher
Nature Publishing Group
Citation
Reusswig, Philip D., Sergey Nechayev, Jennifer M. Scherer, Gyu Weon Hwang, Moungi G. Bawendi, Marc. A. Baldo, and Carmel Rotschild. “A Path to Practical Solar Pumped Lasers via Radiative Energy Transfer.” Scientific Reports 5 (October 5, 2015): 14758.
Version
Final published version
Abstract
The optical conversion of incoherent solar radiation into a bright, coherent laser beam enables the application of nonlinear optics to solar energy conversion and storage. Here, we present an architecture for solar pumped lasers that uses a luminescent solar concentrator to decouple the conventional trade-off between solar absorption efficiency and the mode volume of the optical gain material. We report a 750-μm-thick Nd[superscript 3+]-doped YAG planar waveguide sensitized by a luminescent CdSe/CdZnS (core/shell) colloidal nanocrystal, yielding a peak cascade energy transfer of 14%, a broad spectral response in the visible portion of the solar spectrum, and an equivalent quasi-CW solar lasing threshold of 23 W-cm[superscript −2], or approximately 230 suns. The efficient coupling of incoherent, spectrally broad sunlight in small gain volumes should allow the generation of coherent laser light from intensities of less than 100 suns.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/srep14758
