DocumentCode :
2940654
Title :
Radiating dipoles in photonic crystals
Author :
Busch, Kurt ; Vats, N. ; John, S. ; Sanders, Barry C.
Author_Institution :
Inst. fur Theor. der Kondensierten Mater., Karlsruhe Univ., Germany
fYear :
2000
fDate :
10-15 Sept. 2000
Abstract :
Summary form only given. Photonic crystals (PCs) are fabricated as periodic dielectric arrays that employ a combination of Mie scattering from individual elements of the array and Bragg scattering from the periodic lattice to induce a band structure for photon propagation that is, in many ways, analogous to electronic band structure in a semiconductor. Accordingly, the photonic density of states (DOS) in a PC may be drastically modified from that of free space, and can therefore fundamentally alter the nature of radiative emission from active materials embedded in such a crystal. We consider the radiative dynamics of a dipole antenna embedded in a PC. The antenna is modelled as an initially excited harmonic oscillator coupled to a discrete, non-Markovian bath of harmonic oscillators that represent the electromagnetic field modes. Realistic coupling constants based on the natural (Bloch) modes of the photonic crystal are derived.
Keywords :
electronic density of states; harmonic oscillators; microwave photonics; molecular moments; optical arrays; photonic band gap; quantum optics; Bragg scattering; Mie scattering; active materials; band structure; dipole antenna; electromagnetic field modes; excited harmonic oscillator coupling; harmonic oscillators; natural Bloch modes; non-Markovian bath; periodic dielectric arrays; periodic lattice; photon propagation; photonic crystal; photonic crystals; photonic density of sta; radiating dipoles; radiative emission; Dielectrics; Dipole antennas; Electromagnetic scattering; Lattices; Mie scattering; Oscillators; Particle scattering; Periodic structures; Personal communication networks; Photonic crystals;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Quantum Electronics Conference, 2000. Conference Digest. 2000 International
Conference_Location :
Nice, France
Print_ISBN :
0-7803-6318-3
Type :
conf
DOI :
10.1109/IQEC.2000.908085
Filename :
908085
Link To Document :
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