Two-dimensionally relocatable microfiber-coupled photonic crystal resonator

Ju Young Kim, Myung Ki Kim, Min Kyo Seo, Soon Hong Kwon, Jong Hwa Shin, Yong Hee Lee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


A photonic crystal microresonator is proposed in this study that is relocatable in two dimensions. A wavelength-scale resonator with high Q-factor (26,000) and high collection efficiency (80%) is formed and repositioned by simply placing and relocating a curved-microfiber to a new position on the surface of a two-dimensional square lattice photonic crystal slab. The formation of the resonator was confirmed by observing lasing of resonators. Infrared microscope images showed that the lasing site is two-dimensionally relocated in-situ. Spectral tuning was demonstrated by modifying the curvature of the microfiber. Functionalities, such as the two-dimensional relocation, spectral tuning and efficient extraction, which the curved-microfiber coupling offers, may provide an alternative way of coupling with a single quantum dot.

Original languageEnglish
Pages (from-to)13009-13016
Number of pages8
JournalOptics Express
Issue number15
Publication statusPublished - 2009 Jul 20
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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