DocumentCode :
1213625
Title :
Ultralow Lasing Thresholds of 
-Type Supermodes in Cyclic Photonic Molecules Composed of Submicron Disks With Monopole and Dipole Modes
-Type Supermodes in Cyclic Photonic Molecules Composed of Submicron Disks With Monopole and Dipole ModesAuthor :
Smotrova, Elena I. ; Nosich, Alexander I. ; Benson, Trevor M. ; Sewell, Phillip
Author_Institution :
Inst. of Radio-Phys. & Electron., Kharkov
Volume :
18
Issue :
19
fYear :
2006
Firstpage :
1993
Lastpage :
1995
Abstract :
Cyclic photonic molecules (CPMs) composed of an even number of identical submicron-size circular-disk active resonators in free space are studied in two dimensions. Cold-cavity lasing frequencies and threshold values of material gain are extracted from an electromagnetic eigenvalue problem with exact boundary and radiation conditions. We show that assembling several small cavities in a tightly packed CPM efficiently lowers the thresholds of optically coupled nonwhispering-gallery modes of the lowest values (i.e., 0 and 1) of the azimuth index in each cavity provided that high antisymmetry is arranged
Keywords :
eigenvalues and eigenfunctions; laser modes; microcavity lasers; microdisc lasers; semiconductor lasers; azimuth index; boundary conditions; circular-disk active resonators; cold-cavity lasing; cyclic photonic molecules; dipole mode; electromagnetic eigenvalue problem; material gain; monopole mode; nonwhispering-gallery modes; pi-type supermodes; radiation conditions; semiconductor microdisk lasers; submicron disks; ultralow lasing thresholds; Assembly; Eigenvalues and eigenfunctions; Electromagnetic radiation; Frequency; Laser modes; Optical coupling; Optical pumping; Optical resonators; Quantum dot lasers; Quantum well lasers; Dipole mode; lasing eigenvalue problem; linear threshold; microcavity laser; monopole mode; photonic molecule;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2006.882306
Filename :
1695969
Link To Document :
