Around the core which functioning is done, it confronts the above-mentioned single

摘要

PROBLEM TO BE SOLVED: To provide an optical fiber probe, which can propagate both excitation light and the detection light generated from a sample by the irradiation of the excitation light, and to realize the near field optical microscope, which can detect the emitted light of the sample, wherein the excited electrons having the low permeability such as a semiconductor are diffused in space at high resolution by using the optical fiber probe such as this optical fiber probe. ;SOLUTION: An optical fiber probe is constituted of a core 1, wherein the light in a single wave conducting mode is propagated, a first clad 2, wherein a plurality of wave conducting modes are propagated, and a second clad 3. Then, this optical fiber probe 14 is used as the optical probe for irradiating exciting light and detecting the detected light in a near field optical microscope for performing the measurement of the wavelength spectroscopy of the emitted light. At this time, the excited light Le is propagated in the core 1, and the detected light Ls is propagated in the first clad 2.;COPYRIGHT: (C)1998,JPO