Double Doppler effect in two-dimensional photonic crystal with negative effective index

Qiang Jiang; Jiabi Chen; Binming Liang; Songlin Zhuang

doi:10.1117/12.2248662

17 November 2016 Double Doppler effect in two-dimensional photonic crystal with negative effective index

Qiang Jiang, Jiabi Chen, Binming Liang, Songlin Zhuang

Proceedings Volume 10027, Nanophotonics and Micro/Nano Optics III; 1002707 (2016) https://doi.org/10.1117/12.2248662
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

The inverse Doppler effect in photonic crystal with negative refractive index had been proofed experimentally in our previous research. In this paper, we studied the spatial harmonics of Bloch wave propagating in such PhCs by FFT method. The lagging and front phase evolutions reveal that both backward wave and forward wave exist in these harmonics. Subsequently, we studied the double Doppler effect phenomenon that both the normal and inverse Doppler exist in one photonic crystal simultaneously by using the improved dynamic FDTD method which we made it suitable for dealing with moving objects. The simulative Doppler frequency shifts were consistent with the theoretical values. Our study provides a potential technology in measurement area.

Citation Download Citation

Qiang Jiang, Jiabi Chen, Binming Liang, and Songlin Zhuang "Double Doppler effect in two-dimensional photonic crystal with negative effective index", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 1002707 (17 November 2016); https://doi.org/10.1117/12.2248662

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