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(a) Sketch of phoxonic nanobeam structure. The inset shows the top view of the unit cell. (b) Photonic and (c) phononic band structures.
(a) Group velocities of optical bands A, B and C. Hz eigenfield of band A in (b) XY plane and (c) YZ plane. Hz eigenfield of band B in (d) XY plane and (e) YZ plane. Hz eigenfield of band C in (g) XY plane and (h) YZ plane.
(a) Group velocity of acoustic band D. (b) Displacement field of band D. Strain fields in (c) X, (d) Y and (e) Z directions.
Fourier components of optical transmissions. The optical and acoustic frequencies are listed as: (a) band A and SPP; (b) band B and SPP; (c) band C and SPP; (d) band A and fast acoustic mode; (e) fast optical mode and SPP.
Percentages of each electric and magnetic component for bands A, B, and C.
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