Diamond based photonic crystal microcavities.

Diamond based technologies offer a material platform for the implementation of qubits for quantum computing. The photonic crystal architecture provides the route for a scalable and controllable implementation of high quality factor (Q) nanocavities, operating in the strong coupling regime for cavity quantum electrodynamics. Here we compute the photonic band structures and quality factors of microcavities in photonic crystal slabs in diamond, and compare the results with those of the more commonly-used silicon platform. We find that, in spite of the lower index contrast, diamond based photonic crystal microcavities can exhibit quality factors of Q=3.0x10(4), sufficient for proof of principle demonstrations in the quantum regime.

[1]  Oskar Painter,et al.  Optical-fiber-based measurement of an ultrasmall volume high-Q photonic crystal microcavity , 2004 .

[2]  Galina Khitrova,et al.  Quantum dot photonic-crystal-slab nanocavities: Quality factors and lasing , 2005 .

[3]  T. Asano,et al.  High-Q photonic nanocavity in a two-dimensional photonic crystal , 2003, Nature.

[4]  Susumu Noda,et al.  Photonic Devices Based on In-Plane Hetero Photonic Crystals , 2003, Science.

[5]  A. Doherty,et al.  Cavity Quantum Electrodynamics: Coherence in Context , 2002, Science.

[6]  Masaya Notomi,et al.  High-quality-factor and small-mode-volume hexapole modes in photonic-crystal-slab nanocavities , 2003 .

[7]  F. Jelezko,et al.  Observation of coherent oscillations in a single electron spin. , 2004, Physical review letters.

[8]  Min Qiu,et al.  Small-volume waveguide-section high Q microcavities in 2D photonic crystal slabs. , 2004, Optics express.

[9]  Andrew D. Greentree,et al.  Quantum gate for Q switching in monolithic photonic-band-gap cavities containing two-level atoms , 2006 .

[10]  Susumu Noda,et al.  Fine-tuned high-Q photonic-crystal nanocavity. , 2005, Optics express.

[11]  Amnon Yariv,et al.  Emission properties of a defect cavity in a two-dimensional photonic bandgap crystal slab , 2000 .

[12]  Y. Lim,et al.  Repeat-until-success linear optics distributed quantum computing. , 2005, Physical review letters.

[13]  Jelena Vucković,et al.  Design of photonic crystal microcavities for cavity QED. , 2002, Physical review. E, Statistical, nonlinear, and soft matter physics.

[14]  Pieter Kok,et al.  Efficient high-fidelity quantum computation using matter qubits and linear optics , 2005 .

[15]  T. Asano,et al.  Ultra-high-Q photonic double-heterostructure nanocavity , 2005 .

[16]  Neil B. Manson,et al.  Optically detected spin coherence of the diamond N-V centre in its triplet ground state , 1988 .

[17]  M. Shahriar,et al.  Solid State Quantum Computing Using Spectral Holes , 2000, quant-ph/0007074.

[18]  Yong-Hee Lee,et al.  Nondegenerate monopole-mode two-dimensional photonic band gap laser , 2001 .