Abstract
We investigate the acousto-optic coupling rates between different acoustic resonance modes and a specified optical resonance mode in a one-dimensional phoxonic crystal fishbone nanobeam formed by periodically arranging semi-cylinders of air on both sides of a suspended silicon waveguide. The gradually tapered unit cells form optical and acoustic resonators. In acousto-optic coupling rate calculation, the acoustic fields and optical fields are obtained by steady state monochromatic analysis and eigen-mode computation, respectively. Results showed that the acoustic polarizations and symmetries of the acoustic resonance modes are dominant factors in the acousto-optic coupling efficiency, and appropriate selection of these parameters can prevent cancellation of acousto-optic interactions, thereby enhancing acousto-optic coupling rates. This study provides important insights that can be applied to acousto-optic device designs.
| Original language | English |
|---|---|
| Pages (from-to) | 6076-6091 |
| Number of pages | 16 |
| Journal | Optics Express |
| Volume | 25 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2017 Mar 20 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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High-efficiency acousto-optic coupling in phoxonic resonator based on silicon fishbone nanobeam cavity. / Chiu, Chien Chang; Chen, Wei Min; Sung, Kuen Wei; Hsiao, Fu-Li.
In: Optics Express, Vol. 25, No. 6, 20.03.2017, p. 6076-6091.Research output: Contribution to journal › Article
TY - JOUR
T1 - High-efficiency acousto-optic coupling in phoxonic resonator based on silicon fishbone nanobeam cavity
AU - Chiu, Chien Chang
AU - Chen, Wei Min
AU - Sung, Kuen Wei
AU - Hsiao, Fu-Li
PY - 2017/3/20
Y1 - 2017/3/20
N2 - We investigate the acousto-optic coupling rates between different acoustic resonance modes and a specified optical resonance mode in a one-dimensional phoxonic crystal fishbone nanobeam formed by periodically arranging semi-cylinders of air on both sides of a suspended silicon waveguide. The gradually tapered unit cells form optical and acoustic resonators. In acousto-optic coupling rate calculation, the acoustic fields and optical fields are obtained by steady state monochromatic analysis and eigen-mode computation, respectively. Results showed that the acoustic polarizations and symmetries of the acoustic resonance modes are dominant factors in the acousto-optic coupling efficiency, and appropriate selection of these parameters can prevent cancellation of acousto-optic interactions, thereby enhancing acousto-optic coupling rates. This study provides important insights that can be applied to acousto-optic device designs.
AB - We investigate the acousto-optic coupling rates between different acoustic resonance modes and a specified optical resonance mode in a one-dimensional phoxonic crystal fishbone nanobeam formed by periodically arranging semi-cylinders of air on both sides of a suspended silicon waveguide. The gradually tapered unit cells form optical and acoustic resonators. In acousto-optic coupling rate calculation, the acoustic fields and optical fields are obtained by steady state monochromatic analysis and eigen-mode computation, respectively. Results showed that the acoustic polarizations and symmetries of the acoustic resonance modes are dominant factors in the acousto-optic coupling efficiency, and appropriate selection of these parameters can prevent cancellation of acousto-optic interactions, thereby enhancing acousto-optic coupling rates. This study provides important insights that can be applied to acousto-optic device designs.
UR - http://www.scopus.com/inward/record.url?scp=85015915654&partnerID=8YFLogxK
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U2 - 10.1364/OE.25.006076
DO - 10.1364/OE.25.006076
M3 - Article
VL - 25
SP - 6076
EP - 6091
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 6
ER -