Bandgap modes in a coupled waveguide array

Journal Article · Mon Aug 31 00:00:00 EDT 2009 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2009V039N08ABEH014006· OSTI ID:21471120

Usievich, B A; Nurligareev, D Kh; Svetikov, V V; Sychugov, V A ^[1]

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1. A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

This work examines a waveguide array that consists of ten Nb{sub 2}O{sub 5}/SiO{sub 2} double layers and supports a 0.63-{mu}m surface wave. The deposition of a Nb{sub 2}O{sub 5} capping layer on top of the waveguide array enables a marked increase in the wave field intensity on its surface. The efficiency of surface-wave excitation in the Kretschmann configuration can be optimised by adjusting the number of double layers. We analyse the behaviour of the Bragg mode in relation to the thickness of the layer exposed to air and the transition of this mode from the second allowed band to the first through the bandgap of the system. In addition, the conventional leaky mode converts to a surface mode and then to a guided mode. (fiber and integrated optics)

• OSTI ID: 21471120
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 39, Issue 8; Other Information: DOI: 10.1070/QE2009v039n08ABEH014006; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AIR
BRAGG REFLECTION
DEPOSITION
EFFICIENCY
EXCITATION
LAYERS
NIOBIUM OXIDES
SILICON OXIDES
SURFACES
THICKNESS
WAVE PROPAGATION
WAVEGUIDES
CHALCOGENIDES
DIMENSIONS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
NIOBIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFLECTION
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
TRANSITION ELEMENT COMPOUNDS