Dr. Dieter W. Pohl devised Scanning Near-Field Optical Microscopy (SNOM) with localized evanescent waves at IBM Zurich Laboratories, Switzerland in 1982, and demonstrated a super resolution image via visible light for the first time in the world. A small aperture which size was much smaller than wavelength of light, was made at the sharpened tip of dielectric material (quartz) with metal coating and non-radiation light (near-field light) generated at the aperture was used as a light spot.
[D. W. Pohl, APL 1984; "Optical near-field scanning microscope," European Patent 0112401 (December 27, 1982); U.S. Patent, 4,604,520 (December 20, 1983)]
Photo:Dr. Dieter W. Pohl having a talk with Prof. Satoshi Kawata, Ex-Executive Director of PARC, and Prof. Yasushi Inouye, Executive Director of PARC.
Dr. Dieter W. Pohl and Prof. Satoshi Kawata gave the keynote lectures at NFO-14 on the following respectively.
Dieter W. Pohl
Realized and Un-realized Visions in NFO, Plasmonics and Optical Antennas
Tip-enhanced Raman Microscopy: Near Field Optics for Molecular Imaging in Nano