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HL: Fachverband Halbleiterphysik

HL 64: Focus Session: Optical interconnects - Materials, devices, and integration

HL 64.2: Hauptvortrag

Donnerstag, 19. März 2015, 10:00–10:30, EW 202

Plasmonic and Metallic Cavity Semiconductor Nanolasers for Ultimate Miniaturization — •C.Z. Ning — Arizona State University, Tempe AZ, USA — Tsinghua University, Beijing, China

Miniaturization has been an eternal theme for electronics and photonics since the dawn of the semiconductor era. Size reduction of photonic devices has been driven both by the rich physics and by promising applications in future integrated nanophotonic systems. Micro cavity lasers have been topics of great interests for several decades due to their interesting photonic and quantum optical properties and their potential applications. However, further size reduction of such dielectric/semiconductor-cavity laser becomes exceedingly challenging when the wavelength becomes the eventual roadblock.

In this talk, we will present a summary overview of efforts in the last few years in developing metallic cavity or plasmonic nanolasers. Recent progress in theoretical and experimental studies will be presented, including the demonstration of the first nanolaser with a below-diffraction limit size, our recent efforts in raising the operating temperature of such nanolasers, and the eventual realization of the first room temperature subwavelength size nanolasers. Through the presentation, special emphasis will be placed on the unique features of such nanolasers that distinguish them from the conventional semiconductor lasers. We will also discuss some of attracting features that are yet to be realized experimentally. Finally, we will discuss new designs and current research towards further miniaturization and performance improvement.