6533b828fe1ef96bd1288d1d
RESEARCH PRODUCT
Simultaneous observation of light localization and confinement in near-field optics
David PeyradeC. GirardRomain QuidantYong ChenJ.-c. WeeberAlain DereuxGaëtan Lévêquesubject
PhysicsPhotonbusiness.industryNear-field opticsGeneral Physics and AstronomyCondensed Matter::Mesoscopic Systems and Quantum Hall EffectSpace (mathematics)law.inventionOpticslawVacancy defectDensity of statesNear-field scanning optical microscopeHexagonal latticeScanning tunneling microscopebusinessdescription
We report on the observation, in direct space, of both light localization and confinement effects near lithographically designed structures. The sample is observed in the optical near-field zone with a Photon Scanning Tunneling Microscope (PSTM). Several patterns composed of a few periods of TiO2 dots, arranged as a hexagonal lattice, have been investigated. When the central dot of the pattern is removed, a phenomenon of light localization above the vacancy can be observed in the PSTM image. The occurrence of this phenomenon can be related to the variation of the electromagnetic local density of state.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-11-01 | Europhysics Letters (EPL) |