A refractive index grating fabricated on a planar light waveguide circuit (PLC) and an optical disk tracking groove profile are observed by scanning an optically-trapped 100-nm diameter gold particle.
© 2004 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
H. Ukita and H. Uemi, "Near field observation of a refractive index grating and a topographical grating by an optically-trapped gold particle," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CTuP64.
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