Enhanced structural sensitivity of hybrid-mode acoustic phonons in axially-varying photonic crystal fiber.
نویسندگان
چکیده
We report the observation of anti-crossings between hybrid-mode acoustic phonons in an axially-varying photonic crystal fiber. Our experimental results are analyzed using an electrostriction theory which reveals strong coupling between longitudinal and shear components of elastic wave. These anti-crossings are highly sensitive to the transverse fiber structure and thus could be potentially used for ultra-sensitive sensors and new opto-acoustic devices.
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ورودعنوان ژورنال:
- Optics express
دوره 23 18 شماره
صفحات -
تاریخ انتشار 2015