Slow light in photonic crystals
نویسندگان
چکیده
منابع مشابه
Slow light in photonic crystals
The velocity of light in vacuum, c, is approximately 3 × 108 m s–1, fast enough to make 7.5 round-the-world trips in a single second, and to move a distance of 300 mm in 1 ns. This ultrahigh speed is advantageous for efficient data transmission between two points, whether they are separated on a global scale or on a single chip; however, it also makes control of optical signals in the time doma...
متن کاملSlow light in photonic crystals
The problem of slowing down light by orders of magnitude has been extensively discussed in the literature. Such a possibility can be useful in a variety of optical and microwave applications. Many qualitatively different approaches have been explored. Here we discuss how this goal can be achieved in linear dispersive media, such as photonic crystals. The existence of slowly propagating electrom...
متن کاملSlow light excitation in tapered 1D photonic crystals: theory
Slow light (SL) states corresponding to wavelength regions near the bandgap edge of grated structures are known to show strong field enhancement. Such states may be excited efficiently by well-optimised adiabatic transitions in grated structures, e.g., by slowly turning on the modulation depth. To study adiabatic excitations, a detailed research in 1D is performed to obtain insight into the rel...
متن کاملTheory of slow light excitation in 1D photonic crystals
Slow light (SL) states corresponding to wavelength regions near the bandgap edge of grated structures are known to show strong field enhancement. Such states may be excited efficiently by well-optimised adiabatic transitions in grating structures, e.g., by slowly turning on the modulation depth. To study adiabatic excitations, a detailed investigation in 1D is performed to obtain insight into t...
متن کاملBroadband slow light in one-dimensional logically combined photonic crystals.
Here, we demonstrate the broadband slow light effects in a new family of one dimensional photonic crystals, which are obtained by logically combining two photonic crystals of slightly different periods. The logical combination slowly destroys the original translational symmetries of the individual photonic crystals. Consequently, the Bloch modes of the individual photonic crystals with differen...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2008
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2008.146