Photonic crystal nanocavities with quantum well or quantum dot active material

Tomoyuki Yoshie, Marko Lončar, Koichi Okamoto, Yueming Qiu, Oleg B. Shchekin, Hao Chen, Dennis G. Deppe, Axel Scherer

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


We have investigated the miniaturization of photonic devices for ultimate photon localization, and have demonstrated two-dimensional photonic crystal nanolasers with two important quantum nanostructures- quantum wells (QWs) and quantum dots (QDs). Photonic crystal cavities with QW active material are simple, but powerful nanolasers to produce intense laser output for signal processing. On the other hand, when located in a high-quality factor (Q) nanocavity, because QD(s) strongly couple with the intense optical field, QD photonic crystal cavities are expected to be good experimental setups to study cavity quantum electrodynamics, in addition to high speed and compact laser sources. Our photonic crystal nanolasers have showed as small thresholds as 0.12mW and 0.22mW for QD-photonic crystal lasers and QW- photonic crystal lasers, respectively, by proper cavity designs and nanofabrication. For QD-photonic crystal lasers, whispering gallery modes in square lattice were used together with coupled cavity designs and, for QW-photonic crystal lasers, quadrapole modes in triangular lattice with fractional edge dislocations were used to produce high-Q modes with small mode volume.

Original languageEnglish
Pages (from-to)16-23
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004
Externally publishedYes
EventPhotonic Crystal Materials and Devices II - San Jose, CA, United States
Duration: Jan 26 2004Jan 29 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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