Three-dimensional photonic confinement in imprinted liquid crystalline pillar microcavities

Marco Dusel, Simon Betzold, Sebastian Brodbeck, Stefanie Herbst, Frank Würthner, Daniel Friedrich, Bert Hecht, Sven Höfling, Christof P. Dietrich

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We demonstrate the feasibility of a thermal imprint technology capable of structuring organic thin films with liquid crystalline properties forming feature sizes on a several micrometer scale. The imprint technique can directly be applied onto a variety of substrates including dielectric mirrors. The so fabricated three-dimensional microcavities have lateral extensions up to 20 µm and heights between 1 and 5 µm. Exemplarily, pillar microcavities were produced wherein three-dimensional photonic confinement is observed by the formation of 0D cavity mode patterns. The imprint technique further favors the formation of hemispherical pillar geometries rather than cylindrical pillars resulting in equidistant mode spacings of transversal cavity modes.
Original languageEnglish
Article number201113
Number of pages5
JournalApplied Physics Letters
Volume110
Issue number20
DOIs
Publication statusPublished - 19 May 2017

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