Phononic band-gap guidance of acoustic modes in photonic crystal fibers

Two-dimensional phononic-photonic band gap optomechanical crystal cavity.

We present the fabrication and characterization of an artificial crystal structure formed from a thin film of silicon that has a full phononic band gap for microwave X-band phonons and a two-dimensional pseudo-band gap for near-infrared photons. An engineered defect in the crystal structure is used to localize optical and mechanical resonances in the band gap of the planar crystal. Two-tone opt...

Synthesis of Electromagnetic Modes in Photonic Band Gap Fibers

In this paper, we report on the successful synthesis of three individual modes, HE11 , TE01, and TE 02 for transmission in photonic band gap fibers at near infrared wavelengths. We measure the propagation losses of the HE,1 and TE0 1 modes both inside and outside the band gap of the fiber, and show that the TE0 1 is indeed the lowest loss mode, and is less lossy and has a much wider band gap th...

Surface modes in air-core photonic band-gap fibers.

We present a detailed description of the role of surface modes in photonic band-gap fibers (PBGFs). A model is developed that connects the experimental observations of high losses in the middle of the transmission spectrum to the presence of surface modes supported at the core-cladding interface. Furthermore, a new PBGF design is proposed that avoids these surface modes and produces single-mode...

12 Photonic and Phononic Band Gap Properties of Lithium Niobate

Emulation of two-dimensional photonic crystal defect modes in a photonic crystal with a three-dimensional photonic band gap

Using numerical simulations, we demonstrate the construction of two-dimensional~2D-! like defect modes in a recently proposed 3D photonic crystal structure. These modes, which are confined in all three dimensions by a complete photonic band gap, bear a striking similarity to those in 2D photonic crystals in terms of polarization, field profile, and projected band structures. It is expected that...