Ultra-smooth lithium niobate photonic micro-structures by surface tension reshaping

Charlie Y.J. Ying, Collin L. Sones, Anna C. Peacock, Florian Johann, Elisabeth Soergel, Robert W. Eason, Mikhail N. Zervas, Sakellaris Mailis

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Annealing of micro-structured lithium niobate substrates at temperatures close to, but below the melting point, allows surface tension to reshape preferentially melted surface zones of the crystal. The reshaped surface re-crystallizes upon cooling to form a single crystal again as it is seeded by the bulk which remains solid throughout the process. This procedure yields ultra-smooth single crystal superstructures suitable for the fabrication of photonic micro-components with low scattering loss.

Original languageEnglish
Pages (from-to)11508-11513
Number of pages6
JournalOptics Express
Volume18
Issue number11
DOIs
Publication statusPublished - 24 May 2010
Externally publishedYes

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