Figure | Light and Ultrasound Interactions in a Panda Fiber (IMAGE)
Caption
a, Schematic cross-section of a "panda-type" fiber. Two strain rods induce strain in the fiber, and distinguish between propagation in "slow" and "fast" axes. b, Profile of material displacement of an acoustic wave supported by the panda fiber cross-section. c, Measurement and calculations of the spectrum of acoustic waves that are driven by light in the panda fiber. The acoustic waves are stimulated by a pair of optical tones: one polarized along the fast axis and the other along the slow one. d, Switching of optical probe waves between fast and slow axes. The switching of polarization can be induced at specific wavelengths (horizontal axis), through acoustic waves of specific frequencies (vertical axis). The switching effect is non-reciprocal: it takes place for one direction of propagation of the optical probe wave along the fiber, but not for the opposite one.
Credit
by Gil Bashan, Hilel Hagai Diamandi, Yosef London, Kavita Sharma, Keren Shemer, Elad Zehavi and Avi Zadok
Usage Restrictions
None
License
Licensed content