Title :
Symmetry Control of Wavelength-scale Light Emitters
Author :
Kim, Sun-Kyung ; Kim, Se-Heon ; Lee, Yong-Hee
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon
Abstract :
Characteristics of wavelength-scale photonic crystal cavity modes are controlled by utilizing the spatial symmetry. A robust photonic crystal single-cell structure supporting only one resonant lasing mode is proposed and demonstrated, based on the mirror symmetry selection rule. In addition, the directional vertical beaming is achieved through the loss engineering based on the symmetry perturbation, confirming over 70% photon collection within 30 degrees
Keywords :
laser beams; laser cavity resonators; laser mirrors; laser modes; optical control; optical materials; photonic crystals; solid lasers; directional vertical beaming; mirror symmetry selection rule; photon collection; photonic crystal cavity modes; resonant lasing mode; single-cell PC laser; symmetry control; wavelength-scale light emitters; Light emitting diodes; Lighting control; Mirrors; Optical control; Optical resonators; Optical waveguides; Photonic band gap; Photonic crystals; Resonance; Robustness;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.278827
