Abstract
We demonstrate the simultaneous existence of slow photonic and phononic modes in phoxonic nanobeam. The phoxonic nanobeam is formed by arranging air semi-cylinders along lateral sides of a suspended silicon waveguide. Because of the slow group velocities, the acousto-optical interactions are dramatically enhanced. The efficiencies of interaction are strongly related to the polarizations of both slow photonic and phononic modes. Our proposed structure is a potential high-efficiency acousto-optical modulator with ultra-small footprint size. The operating optical wavelength is about 1550 nm, while the acoustic frequency is about 6.8 GHz.
| Original language | English |
|---|---|
| Article number | 171103 |
| Journal | Applied Physics Letters |
| Volume | 100 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2012 Apr 23 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
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High-efficiency acousto-optical interaction in phoxonic nanobeam waveguide. / Hsiao, Fu-Li; Hsieh, Cheng Yi; Hsieh, Hao Yu; Chiu, Chien Chang.
In: Applied Physics Letters, Vol. 100, No. 17, 171103, 23.04.2012.Research output: Contribution to journal › Article
TY - JOUR
T1 - High-efficiency acousto-optical interaction in phoxonic nanobeam waveguide
AU - Hsiao, Fu-Li
AU - Hsieh, Cheng Yi
AU - Hsieh, Hao Yu
AU - Chiu, Chien Chang
PY - 2012/4/23
Y1 - 2012/4/23
N2 - We demonstrate the simultaneous existence of slow photonic and phononic modes in phoxonic nanobeam. The phoxonic nanobeam is formed by arranging air semi-cylinders along lateral sides of a suspended silicon waveguide. Because of the slow group velocities, the acousto-optical interactions are dramatically enhanced. The efficiencies of interaction are strongly related to the polarizations of both slow photonic and phononic modes. Our proposed structure is a potential high-efficiency acousto-optical modulator with ultra-small footprint size. The operating optical wavelength is about 1550 nm, while the acoustic frequency is about 6.8 GHz.
AB - We demonstrate the simultaneous existence of slow photonic and phononic modes in phoxonic nanobeam. The phoxonic nanobeam is formed by arranging air semi-cylinders along lateral sides of a suspended silicon waveguide. Because of the slow group velocities, the acousto-optical interactions are dramatically enhanced. The efficiencies of interaction are strongly related to the polarizations of both slow photonic and phononic modes. Our proposed structure is a potential high-efficiency acousto-optical modulator with ultra-small footprint size. The operating optical wavelength is about 1550 nm, while the acoustic frequency is about 6.8 GHz.
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U2 - 10.1063/1.4705295
DO - 10.1063/1.4705295
M3 - Article
VL - 100
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 17
M1 - 171103
ER -