High-Q Microcavity in Two-Dimensional Diamond Photonic Crystal Thin Films Realized via a Mode Gap
ZHOU Chang-Zhu, XIONG Zhi-Gang, LI Zhi-Yuan
Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190
High-Q Microcavity in Two-Dimensional Diamond Photonic Crystal Thin Films Realized via a Mode Gap
ZHOU Chang-Zhu, XIONG Zhi-Gang, LI Zhi-Yuan
Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190
摘要We design high quality factor (Q) photonic crystal microcavities in diamond films for applications in quantum information based on color centers. A photonic microcavity made from a waveguide heterostructure with a mode gap is demonstrated to have a high Q factor over 1051400 and a modal volume V of 2.24 cubic wavelengths by modifying the mode gap width and the tapered region geometry. Besides its ultrahigh Q factor, the waveguide-like geometry of the cavity allows for easy on-chip transportation of quantum information between different cavities.
Abstract：We design high quality factor (Q) photonic crystal microcavities in diamond films for applications in quantum information based on color centers. A photonic microcavity made from a waveguide heterostructure with a mode gap is demonstrated to have a high Q factor over 1051400 and a modal volume V of 2.24 cubic wavelengths by modifying the mode gap width and the tapered region geometry. Besides its ultrahigh Q factor, the waveguide-like geometry of the cavity allows for easy on-chip transportation of quantum information between different cavities.
[1] Wrachtrup J and Jelezko F 2006 J. Phys.: Condens.Matter. 18 S807 [2] Kurtsiefer C, Mayer S, Zarda P and Weinfurter H 2000 Phys. Rev. Lett. 85 290 [3] Jelezko F, Gaebel T, Popa I, Domhan M, Gruber A andWrachtrup J 2004 Phys. Rev. Lett. 93 130501 [4] Greentree A D, Salzman J, Prawer S and Hollenberg L C L2006 Phys. Rev. A 73 013818 [5] Lim Y L, Beige A and Kwek L C 2005 Phys. Rev. Lett. 95 030505 [6] Andreani L C and Panzarini G 1999 Phys. Rev. B 60 13276 [7] Noda S 2006 J. Lightwave Technol. 24 4554 [8] Kreuzer C, Riedrich-Moller J, Neu E and Becher C 2008 Opt. Express 16 1632 [9] Kwon S H, Sunner T, Kamp M and Forchel A 2008 Opt.Express 16 4605 [10] Akahane Y, Asano T, Song B S and Noda S 2003 Nature 425 944 [11] Li Z Y and Ho K M 2003 Phys. Rev. B 68 245117 [12] Akahane Y, Asano T, Takano H, Song B S, Takana Y and NodaS 2005 Opt. Express 13 2512 [13] Takano H, Song B S, Asano T and Noda S 2006 Opt.Express 14 3491
2009, Vol. 26 
