Electrically driven nanobeam laser

Kwang Yong Jeong, You Shin No, Yongsop Hwang, Ki Soo Kim, Min Kyo Seo, Hong Kyu Park, Yong Hee Lee

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

The realization of lasers as small as possible has been one of the long-standing goals of the laser physics and quantum optics communities. Among multitudes of recent small cavities, the one-dimensional nanobeam cavity has been actively investigated as one of the most attractive candidates for effective photon confinement thanks to its simple geometry. However, the current injection into the ultra-small nano-resonator without critically degrading the quality factor remains still unanswered. Here we report an electrically driven, one-dimensional, photonic-well, single-mode, room-temperature nanobeam laser whose footprint approaches the smallest possible value. The small physical volume of ∼4.6 × 0.61 × 0.28 μm 3 (∼8.2(λ n -1)3) was realized through the introduction of a Gaussian-like photonic well made of only 11 air holes. In addition, a low threshold current of ∼5 μA was observed from a three-cell nanobeam cavity at room temperature. The simple one-dimensional waveguide nature of the nanobeam enables straightforward integration with other photonic applications such as photonic integrated circuits and quantum information devices.copyright

Original languageEnglish
Article number2822
JournalNature Communications
Volume4
DOIs
Publication statusPublished - 2013 Nov 28

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

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    Jeong, K. Y., No, Y. S., Hwang, Y., Kim, K. S., Seo, M. K., Park, H. K., & Lee, Y. H. (2013). Electrically driven nanobeam laser. Nature Communications, 4, [2822]. https://doi.org/10.1038/ncomms3822