TITLE

Crystalline garnet Bragg reflectors for high power, high temperature, and integrated applications fabricated by multi-beam pulsed laser deposition

AUTHOR(S)
Sloyan, Katherine A.; May-Smith, Timothy C.; Zervas, Michalis N.; Eason, Robert W.
PUB. DATE
August 2012
SOURCE
Applied Physics Letters;8/20/2012, Vol. 101 Issue 8, p081117
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Crystalline Bragg reflectors are of interest for high power, high temperature, and integrated applications. We demonstrate the automated growth of such structures by shuttered multi-beam pulsed laser deposition. Geometries include 145 layer stacks exhibiting >99.5% reflection and π phase-shifted designs. A crystalline grating strength-apodized sample was grown by mixing plumes to obtain layers with custom refractive indices. Peak reflection wavelength was tuneable with incident position, samples withstood temperatures of ∼750 °C, and film and substrate have been shown to withstand incident pulsed laser fluences of up to ∼33 J cm-2.
ACCESSION #
79357609

 

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