Cryogenic InGaAs HEMT-Based Switches For Quantum Signal Routing
Alberto Ferraris, Eunjung Cha, et al.
IEDM 2022
We describe the design, fabrication, and characterization of a 1-dimensional silicon photonic crystal cavity with a quality factor-to-mode volume ratio greater than , which exceeds the highest previous values by an order of magnitude. The maximum of the electric field is outside the silicon in a void formed by a central slot. An extremely small calculated mode volume of 0.0096 (λvac/n is achieved through the abrupt change of the electric field in the slot, despite which a high quality factor of 8.2 × is predicted by simulation. Quality factors up to 1.4 × are measured in actual devices. The observation of pronounced thermo-optic bistability is consistent with the strong confinement of light in these cavities.
Alberto Ferraris, Eunjung Cha, et al.
IEDM 2022
Jim Garrison, Caleb Johnson, et al.
QCE 2023
Arkopal Dutt, Edwin Pednault, et al.
PRResearch
Christopher Tong, Helena Zhang, et al.
APS March Meeting 2024