کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1543047 | 997415 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cavity mode control in side-coupled periodic waveguides: Theory and experiment
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
We demonstrate that the modes of coupled cavities created in periodic waveguides can depend critically on the longitudinal shift between the cavities. In the absence of such shift, the modes feature symmetric or antisymmetric profiles, and their frequency splitting generally increases as the cavities are brought closer. We show that the longitudinal shift enables flexible control over the fundamental modes, whose frequency detuning can be reduced down to zero. Our coupled-mode theory analysis reveals an intrinsic link between the mode tuning and the transformation of slow-light dispersion at the photonic band-edge. We illustrate our approach through numerical modeling of cavities created in arrays of dielectric rods, and confirm our predictions with experimental observations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 8, Issue 4, September 2010, Pages 310-317
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 8, Issue 4, September 2010, Pages 310-317
نویسندگان
Sangwoo Ha, Andrey A. Sukhorukov, Andrei V. Lavrinenko, Yuri S. Kivshar,