6533b855fe1ef96bd12b1307

RESEARCH PRODUCT

Observation of Light Confinement Effects with a Near-Field Optical Microscope.

Eric BourillotAlain DereuxJean-claude WeeberJean-pierre GoudonnetChristian GirardYong Chen

subject

Optical imageMaterials sciencegenetic structuresbusiness.industryNear-field opticsPhysics::OpticsGeneral Physics and AstronomyDielectricFlat glassPolarization (waves)law.inventionOpticsOptical microscopelawOptoelectronicsNear field optical microscopebusinessNanoscopic scale

description

This Letter reports the experimental observation of light confinement effects by near-field optical microscopy. Depolarization effects giving rise to light confinement close to nanoscopic objects have been unambiguously observed in near-field optical images of subwavelength dielectric pads etched on a flat glass substrate. According to the incident polarization, this phenomenon leads to reverse contrasts in the near-field optical image of the same subwavelength objects.

10.1103/physrevlett.77.5332https://pubmed.ncbi.nlm.nih.gov/10062777