title: Laser Refrigeration of Ytterbium-Doped Sodium-Yttrium-Fluoride Nanowires.
abstract: Sodium yttrium fluoride (β-NaYF4) nanowires (NWs) with a hexagonal crystal structure are synthesized using a low-cost hydrothermal process and are shown to undergo laser refrigeration based on an upconversion process leading to anti-Stokes (blueshifted) photoluminescence. Single-beam laser trapping combined with forward light scattering is used to investigate cryophotonic laser refrigeration of individual NWs through analysis of their local Brownian dynamics.
authors: Department of Materials Science & Engineering, University of Washington, Seattle, WA, 98195, USA.
authors: Xuezhe
authors: X
authors: Zhou
authors: Department of Chemistry, University of Washington, Seattle, WA, 98195, USA.
authors: Bennett E
authors: BE
authors: Smith
authors: Department of Materials Science & Engineering, University of Washington, Seattle, WA, 98195, USA.
authors: Paden B
authors: PB
authors: Roder
authors: Department of Materials Science & Engineering, University of Washington, Seattle, WA, 98195, USA. peterpz@uw.edu.|Fundamental & Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA. peterpz@uw.edu.
authors: Peter J
authors: PJ
authors: Pauzauskie
keywords: NaYF4; anti-Stokes; lasers; nanowires; refrigeration; solid-state