Vertical beaming of wavelength-scale photonic crystal resonators

被引:99
作者
Kim, Se-Heon [1 ]
Kim, Sun-Kyung [1 ]
Lee, Yong-Hee [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea
关键词
D O I
10.1103/PhysRevB.73.235117
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report that > 80% of the photons generated inside a photonic crystal slab resonator can be funneled within a small divergence angle of +/- 30 degrees. The far-field radiation properties of a photonic crystal slab resonant mode are modified by tuning the cavity geometry and by placing a reflector below the cavity. The former method directly shapes the near-field distribution so as to achieve directional and linearly polarized far-field patterns. The latter modification takes advantage of the interference effect between the original waves and the reflected waves to enhance the energy directionality. We find that, regardless of the slab thickness, the optimum distance between the slab and the reflector closely equals one wavelength of the resonance under consideration. We have also discussed an efficient far-field simulation algorithm based on the finite-difference time-domain method and the near- to far-field transformation.
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页数:13
相关论文
共 49 条
[1]   High-Q photonic nanocavity in a two-dimensional photonic crystal [J].
Akahane, Y ;
Asano, T ;
Song, BS ;
Noda, S .
NATURE, 2003, 425 (6961) :944-947
[2]  
AN S, 2002, PHYS REV B, V65
[3]   A channel drop filter using a single defect in a 2-D photonic crystal slab - Defect engineering with respect to polarization mode and ratio of emissions from upper and lower sides [J].
Asano, T ;
Mochizuki, M ;
Noda, S ;
Okano, M ;
Imada, M .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2003, 21 (05) :1370-1376
[4]   Impact of planar microcavity effects on light extraction - Part I: Basic concepts and analytical trends [J].
Benisty, H ;
De Neve, H ;
Weisbuch, C .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1998, 34 (09) :1612-1631
[5]   MODIFICATION OF SPONTANEOUS EMISSION RATE IN PLANAR DIELECTRIC MICROCAVITY STRUCTURES [J].
BJORK, G ;
MACHIDA, S ;
YAMAMOTO, Y ;
IGETA, K .
PHYSICAL REVIEW A, 1991, 44 (01) :669-681
[6]  
BORN M, 1980, PRINCIPLES OPTICS, P329
[7]  
Coldren L., 1995, Diode lasers and photonic integrated circuits
[8]   RADIATION-PATTERN OF A CLASSICAL DIPOLE IN A CAVITY [J].
DOWLING, JP ;
SCULLY, MO ;
DEMARTINI, F .
OPTICS COMMUNICATIONS, 1991, 82 (5-6) :415-419
[9]   Toward high-efficiency quantum-dot single photon sources [J].
Gérard, JM ;
Gayral, B .
QUANTUM DOTS, NANOPARTICLES, AND NANOCLUSTERS, 2004, 5361 :88-95
[10]  
Hennessy K., 2004, PHOTONIC NANOSTRUCT, V2, P65