Quantum Dots in H1 Photonic Crystal Microcavities for Quantum Information

ORAL

Abstract

Coupling semiconductor quantum dots to optical microcavities is a promising technique for implementing quantum information processing protocols in the solid-state. By placing one or more emitters in a cavity, it is possible to create an efficient source of single photons or to explore collective interactions of few-emitter systems. Our devices consist of two layers of quantum dots, embedded in the cavity region of H1 photonic crystal microcavities. One of the quantum dot layers can be frequency-tuned deterministically, allowing two resonant quantum dots to be coupled to a single cavity mode. Because good mode-matching between the cavity mode and the input/output channel is necessary for many applications, we optimize the far-field profiles of our H1 cavities and demonstrate strong enhancement of the external mode matching properties. We will discuss our far-field optimization results as well as our ongoing work to study interactions of multiple emitters in a cavity.

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Authors

  • Jenna Hagemeier

    • Physics Department, University of California Santa Barbara, USA

  • Cristian Bonato

    • Huygens Laboratory, Leiden University, The Netherlands

  • Tuan-Anh Truong

    • Materials Department, University of California Santa Barbara, USA

  • Hyochul Kim

    • Physics Department, University of California Santa Barbara, USA

  • Morten Bakker

    • Huygens Laboratory, Leiden University, The Netherlands

  • Gareth J. Beirne

    • Huygens Laboratory, Leiden University, The Netherlands

  • Martin P. van Exter

    • Huygens Laboratory, Leiden University, The Netherlands

  • Pierre Petroff

    • ECE Department, University of California Santa Barbara, USA

  • Dirk Bouwmeester

    • Physics Department, University of California Santa Barbara, USA; Huygens Laboratory, Leiden University, The Netherlands