Patent ID: 9606052
Date: 2017-03-28
CPC Classifications: G01N,G01Q

Claim:
1. A tuning-fork based near-field probe for spectral measurement, comprising: a first electrode and a second electrode arranged apart from each other; and a wire-shaped nano-probe downward attached to a one-side end of the second electrode and configured to vibrate in a perpendicular direction with respect to a sample, wherein the nano-probe comprises: a shaft for receiving a terahertz pulse incident through a means for focusing light; an end part for localizing the received terahertz pulse to interact with the sample, and scattering a terahertz pulse, into air, which has obtained local information of the sample in a localizing procedure; and a tapered region for connecting the shaft and the end part, wherein a length of the nano-probe, which is defined as a sum of a length of the shaft and a length of the tapered region is formed to be longer than a radius of a focus of a beam by the terahertz pulse which is focused by the means for focusing light.