volume | PIER Journals

Abstract

In this work, we report a novel phase change material: Hf-doped VO2(M1) with negligible thermal hysteresis width for low-power silicon photonic reconfigurable device applications. As dopant concentration rises from 0% to 3%, the material maintains the metal-insulator transition (MIT) property of VO2(M1) thin films, and the thermal hysteresis width significantly narrows from 7 ºC to <1 ºC, leading to a good control of material electrical and optical constants as a function of temperature. A ring resonator with Hf-doped VO2(M1) material partly deposited on the ring has been fabricated. Temperature dependent transmission spectrum of the device has been tested, which shows resonant peak shift due to the phase transition of Hf doped VO2(M1). Doping Hf makes this material become a promising candidate for a variety of silicon integrated reconfigurable photonic devices.

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Dr. Taixing Huang

Dr. Qingyang Du

Dr. Tongtong Kang

Dr. Jianliang Xie

Dr. Long-Jiang Deng

Dr. Juejun Hu

Prof. Lei Bi