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In this paper we explore the possibility to accomplish field enhancement in the visible range in a photonic band gap cavity inserted in a Bragg waveguide, assisted by a silver metal groove. The investigation we carried out shows how the resonant mode can be localized in dielectric region under a Bragg grating; a thorough evaluation of some characteristic parameters also allows to determine whether...
Nonlinear optical interaction in a nonlinear Kerr photonic crystal is considered theoretically. We find field enhancement at some wavelengths where the transmission ratio exceeds one. Then we explain some interesting phenomena on optical switching observed in our previous experiments.
Experimental measurements, FDTD simulations, and effective susceptibilities are combined to show that the unexpectedly large electro-optic tunability found in lithium niobate photonic crystals can be quantitatively explained by the field-enhancement associated with slow light.
We demonstrate concentration of optical energy within a sub-wavelength air hole running the length of an optical fiber. The fiber core resembles a tiny tube with a bore diameter of 200 nm or less.
Slow light in photonic crystal waveguides offers field and phase enhancement for photonic functionality. We demonstrate broadband operation (2.5 THz) of slow light devices and low loss (4 dB/cm) propagation of e-beam and DUV fabricated structures and discuss their dependence on disorder.
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