Three-dimensional (3D) whispering cave modes (WCMs) for photonic quantum rings (PQRs) are described. The 3D-emitting but surface-normal dominant PQR laser features microampere-level low-threshold currents. The linewidths can be sub-Å while for the PQR laser size less than 1 ¿m, the increasing intermode spacing leads to a single eigenmode PQR laser with a threshold of 300 nA. In contrast to the regular 2D WGM, the 3D WCM's major polarization state is tangential to the PQR rim favoring a strong carrier-photon coupling for the recombinant carriers generating PQRs. A new blue GaN PQRs at wavelengths from 420 to 470 nm also achieve surface-normal lasing easily, thanks to the robust 3D helix WCMs. The PQR can outperform LEDs for high end while overcoming the thermal problem of the LED, where mega-pixel PQR laser chips can be used for panel-less laser TVs.
Photonic Quantum Ring Laser of Whispering Cave Mode and the Mega-Pixel Laser Chip
01.12.2008
2235907 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
QUANTUM-RING LASERS: Whispering-cave-mode lasers emit in blue-violet
British Library Online Contents | 2008
Photonic band and whispering gallery mode emitters
IEEE | 1997
|Photonic Band and Whispering Gallery Mode Emitters
British Library Conference Proceedings | 1997
|