Photonic crystal coupled cavities with increased beaming and free space coupling efficiency

Journal Article · Mon Jan 07 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4772955· OSTI ID:22162659

Haddadi, S.; Yacomotti, A. M.; Sagnes, I.; Beaudoin, G.; Le Gratiet, L.; Levenson, J. A. ^[1]; Raineri, F. ^[1]

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1. Laboratoire de Photonique et de Nanostructures (CNRS UPR 20), Route de Nozay, 91460 Marcoussis (France)

We implement the band-folding approach in coupled photonic crystal L3 (three missing holes) nanocavities and demonstrate a dramatic beaming improvement compatible with high-Q operation. Directional laser effect is achieved. In addition, resonant free-space coupling to the symmetric and anti-symmetric hybrid modes of the photonic molecule is shown. We measure the coupling to each mode as a function of the spatial position of the laser spot, which can be used as a technique to probe the symmetry of coupled cavity modes.

• OSTI ID: 22162659
• Journal Information: Applied Physics Letters, Vol. 102, Issue 1; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
BEAMS
CAVITY RESONATORS
COUPLING
CRYSTALS
EFFICIENCY
LASER RADIATION
MATERIALS
MOLECULES
NANOSTRUCTURES
OPERATION
PROBES
SYMMETRY