We report the growth of highly reflective distributed Bragg reflectors (DBRs) in the UV region using the lattice-matched system. The DBRs were deposited on nearly strain-free templates to avoid strain-induced structural degradations. The appearance of cracks was then completely suppressed. The DBRs exhibit a reflectivity higher than 99% at a wavelength as short as and a stop band width of .
Crack-free highly reflective Bragg mirrors for UV applications
E. Feltin, J.-F. Carlin, J. Dorsaz, G. Christmann, R. Butté, M. Laügt, M. Ilegems, N. Grandjean; Crack-free highly reflective Bragg mirrors for UV applications. Appl. Phys. Lett. 30 January 2006; 88 (5): 051108. https://doi.org/10.1063/1.2167399
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