Realization of tunable photonic crystals based on the metal-insulator transition of VO<sub>2</sub>

D. Xiao; K. W. Kim; J. M. Zavada; G. Lazzi

doi:10.1117/12.643920

28 February 2006 Realization of tunable photonic crystals based on the metal-insulator transition of VO₂

D. Xiao, K. W. Kim, J. M. Zavada, G. Lazzi

Proceedings Volume 6128, Photonic Crystal Materials and Devices IV; 61280A (2006) https://doi.org/10.1117/12.643920
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

The feasibility of an electrically programmable photonic crystal (PC) is investigated theoretically based on the metal-insulator transition of vanadium dioxide (VO₂). We propose a slab structure based on VO₂ whose dielectric properties can be modulated by selectively applying the bias on a lithographically defined array of gate electrodes to induce the phase transition. So, unlike the ordinary PCs, wave propagation in the desired structure may be switched on/off or redirected to our satisfaction. To examine the idea, the photonic band structure (PBS) and the wave guiding characteristics are investigated by using the iterative plane wave expansion and the finite difference time domain methods. The results clearly indicate that the changes induced in the VO₂ dielectric properties via the phase transition can enable effective modulation of wave propagation at a high speed, offering a promising opportunity for a photonic circuit that can be programmed or reconfigured on demand.

Citation Download Citation

D. Xiao, K. W. Kim, J. M. Zavada, and G. Lazzi "Realization of tunable photonic crystals based on the metal-insulator transition of VO₂", Proc. SPIE 6128, Photonic Crystal Materials and Devices IV, 61280A (28 February 2006); https://doi.org/10.1117/12.643920

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