Ultra Fast Nonlinear Optical Tuning of Photonic Crystal Cavities

Abstract

We demonstrate fast (up to 20 GHz), low power (5 $\mu W$) modulation of photonic crystal (PC) cavities in GaAs containing InAs quantum dots. Rapid modulation through blue-shifting of the cavity resonance is achieved via free carrier injection by an above-band picosecond laser pulse. Slow tuning by several linewidths due to laser-induced heating is also demonstrated.

References in corpus (1)

• Terahertz All-Optical Modulation in a Silicon-Polymer Hybrid System

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