
Proceedings Paper
Tuning of 2D rod-type photonic crystal cavity for optical modulation and impact sensingFormat | Member Price | Non-Member Price |
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Paper Abstract
We propose a novel way of mechanical perturbation of photonic crystal cavities for on-chip applications. We utilize the equivalence of the 2D photonic crystals with perfect electric conductor (PEC) boundary conditions to the infinite height 3D counterparts for rod type photonic crystals. Designed structures are sandwiched with PEC boundaries above and below and the perturbation of the cavity structures is demonstrated by changing the height of PEC boundary. Once a defect filled with air is introduced, the metallic boundary conditions is disturbed and the effective mode permittivity changes leading to a tuned optical properties of the structures. Devices utilizing this perturbation are designed for telecom wavelengths and PEC boundaries are replaced by gold plates during implementation. For 10 nm gold plate displacement, two different cavity structures showed a 21.5 nm and 26 nm shift in the resonant wavelength. Optical modulation with a 1.3 MHz maximum modulation frequency with a maximum power consumption of 36.81 nW and impact sensing with 20 μs response time (much faster compared to the commercially available ones) are shown to be possible.
Paper Details
Date Published: 4 March 2019
PDF: 9 pages
Proc. SPIE 10931, MOEMS and Miniaturized Systems XVIII, 109310E (4 March 2019); doi: 10.1117/12.2509825
Published in SPIE Proceedings Vol. 10931:
MOEMS and Miniaturized Systems XVIII
Wibool Piyawattanametha; Yong-Hwa Park; Hans Zappe, Editor(s)
PDF: 9 pages
Proc. SPIE 10931, MOEMS and Miniaturized Systems XVIII, 109310E (4 March 2019); doi: 10.1117/12.2509825
Show Author Affiliations
Ogulcan E. Orsel, Middle East Technical Univ. (Turkey)
Mertcan Erdil, Middle East Technical Univ. (Turkey)
Mertcan Erdil, Middle East Technical Univ. (Turkey)
Published in SPIE Proceedings Vol. 10931:
MOEMS and Miniaturized Systems XVIII
Wibool Piyawattanametha; Yong-Hwa Park; Hans Zappe, Editor(s)
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