Month: June 2023

Our recent publication in Optics Express introduces novel research on a thermo-optic  VO₂-based silicon waveguide mid-infrared router featuring asymmetric activation thresholds and large bi-stability. This study examines the routers’ performance, achieving power limiting levels of 56.5 dB in the forward operating mode and 64.5 dB in the reverse operating mode. Notably, the total transmission in the inactive mode reaches 75%. Furthermore, the study discusses the bi-stability and latching behavior exhibited by the router.

Citation: M. Lust*, I. Vitebskiy, I. Anisimov, and N. Ghalichechian, “Thermo-optic VO₂-based silicon waveguide mid-infrared router with asymmetric activation thresholds and large bi-stability,” Optics Express, vol. 31, no. 14, pp. 23260-23273, 2023/07/03 2023, doi: 10.1364/OE.493895.

Our new work on the reliability of VO₂-based mmWave switches is recently published in the IEEE Transactions on Device and Materials Reliability. This study investigates the performance and reliability of vanadium dioxide (VO₂) thin film shunt switches integrated with coplanar waveguide (CPW) in the mmWave frequency range of 35-45 GHz. Remarkably, even after subjecting the switches to 100 million cycles of thermal cycling, statistical analysis showed no degradation in the electrical properties of the VO2 switches.

Citation: S. Chen, M. Lust, A. Roo and N. Ghalichechian, “Reliability of VO₂-Based mmWave Switches Under 100 Million Thermal Cycles,” in IEEE Transactions on Device and Materials Reliability, vol. 23, no. 2, pp. 241-248, June 2023, doi: 10.1109/TDMR.2023.3249771.