Dispersion and polarization conversion of whispering gallery modes in nanowires

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.82.195328· OSTI ID:21502886

Pavlovic, G; Malpuech, G ^[1]; Gippius, N A ^[1]

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1. LASMEA, Clermont Universite-Universite Blaise Pascal, BP 10448, 63000 Clermont-Ferrand (France)

We investigate theoretically the optical properties of nano-wires (NWs) with cross sections having either discrete or cylindrical symmetry. The material forming the wire is birefringent, showing a different dielectric response in the plane and along the axis of the wire, which is typically the case for wires made of wurtzite materials, such as ZnO or GaN. We look for solutions of Maxwell's equations having the proper symmetry. The dispersions and the linewidths versus angle of incident light for the modes having high momentum in the cross-section plane, so called whispering gallery modes, are calculated. We put a special emphasis on the case of hexagonal cross sections. The energy positions of the modes for a set of azimuthal quantum numbers are shown. We demonstrate the dependence of the energy splitting between TE and TM modes versus birefringence. The polarization conversion from TE to TM with increase in the axial wave vector is discussed for both cylindrical and discrete symmetries.

• OSTI ID: 21502886
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 82, Issue 19; Other Information: DOI: 10.1103/PhysRevB.82.195328; (c) 2010 The American Physical Society; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
BIREFRINGENCE
CONVERSION
CROSS SECTIONS
DIELECTRIC MATERIALS
GALLIUM NITRIDES
LINE WIDTHS
MATHEMATICAL SOLUTIONS
MAXWELL EQUATIONS
NANOSTRUCTURES
OPTICAL PROPERTIES
POLARIZATION
QUANTUM NUMBERS
QUANTUM WIRES
SYMMETRY
ZINC OXIDES
CHALCOGENIDES
DIFFERENTIAL EQUATIONS
EQUATIONS
GALLIUM COMPOUNDS
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
PNICTIDES
REFRACTION
ZINC COMPOUNDS