Imaging Properties of Three Dimensional Aperture Near-Field Scanning Optical Microscopy and Optimized Near-Field Fiber Probe Designs

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概要

• 論文の詳細を見る

• A series of finite difference time domain (FDTD) methods for obtaining more insight on the near-field distribution of subwavelength aperture and fiber probes are numerically investigated. The treatment of dispersive materials in a time-domain-dependent fashion is considered. Several significant factors are also considered successively, e.g., the near-field distribution of subwavelength aperture in an infinite aluminum plane with sample interactions, the characteristics between the near-field distribution and the depolarization phenomenon, different types of three-dimensional tip (noncoated and metal-coated) used to illuminate a photosensitive sample and the polarization of an incident electromagnetic field. Moreover, the FDTD designs of two types of improved probe are illustrated and a suggestion for fabricating an optimal probe is given. Our proposed structures will yield useful information and guidelines for designing high-performance near-field probes.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2004-12-15

著者

• Tsai Din-ping

  Department Of Physics National Taiwan University

• Yang Tzong-jer

  Department Of Electro-physics National Chiao-tung University

• Chau Yuan-Fong

  Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China

• Yang Tzong-Jer

  Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China

• Chau Yuna-Fong

  Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan, Republic of China

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