摘要Generally, dipole mode is a doubly degenerate mode. Theoretical calculations have indicated that the single dipole mode of two-dimensional photonic crystal single point defect cavity shows high polarization property. We present a structure with elongated lattice, which only supports a single y-dipole mode. With this structure we can eliminate the degeneracy, control the lasing action of the cavity and demonstrate the high polarization property of the single dipole mode. In our experiment, the polarization extinction ratio of the y-dipole mode is as high as 51:1.
Abstract:Generally, dipole mode is a doubly degenerate mode. Theoretical calculations have indicated that the single dipole mode of two-dimensional photonic crystal single point defect cavity shows high polarization property. We present a structure with elongated lattice, which only supports a single y-dipole mode. With this structure we can eliminate the degeneracy, control the lasing action of the cavity and demonstrate the high polarization property of the single dipole mode. In our experiment, the polarization extinction ratio of the y-dipole mode is as high as 51:1.
[1] Painter O, Lee R K, Scherer A, Yariv A, O'Brien J D,Dapkus P D and Kim I 1999 Science 284 1819 [2] Park H G, Kim S H, Kwon S H, Ju Y G, Yang J K, Baek J H,Kim S B and Lee Y H 2004 Science 305 1444 [3] Nozaki K, Kita S and Baba T 2007 Opt. Express 15 7506. [4] Nomura M, Iwamoto S, Kumagai N and Arakawa Y 2008 Physica E 40 1800 [5] Painter O and Srinivasan K 2002 Opt. Lett. 27339 [6] Ryu H Y, Kim S H, Park H G and Lee Y H 2003 J. Appl.Phys. 93 831 [7] Frederick S, Dalacu D, Aers G C, Poole P J, Lapointe J andWilliams R L 2006 Physica E 32 504 [8] Shirane M, Kono S, Ushida J, Ohkouchi S, Ikeda N, SugimotoY and Tomita A 2007 J. Appl. Phys. 101 073107 [9] Noda S, Yokoyama M, Imada M, Chutinan A and Mochizuki M2001 Science 293 1123 [10] Kavokin A, Baumberg J, Malpuech G and Laussy F 2007 Microcavities (Oxford: Oxford University) p 346 [11] Ryu H Y, Notomi M and Lee Y H 2003 Appl. Phys.Lett. 83 4294 [12] Frei W R, Johnson H T and Choquette K D 2008 J.Appl. Phys. 103 033102 [13] Zheng W H, Ren G, Ma X T, Cai X H, Chen L H, Nozaki K andBaba T 2006 J. Cryst. Growth 292 341