Patent ID: 7737402
Filing Date: 2010-06-15
Classification: G01J,G01S

Abstract:
1. A distance adjusting apparatus having a transmission line for transmitting terahertz radiation and for adjusting a distance between the transmission line and an object by using the terahertz radiation, said apparatus comprising: a generator for generating the terahertz radiation transmitted through the transmission line; a detector for detecting the terahertz radiation transmitted through the transmission line; a distance changing portion configured to change the distance in a direction across a transmission direction of the terahertz radiation through the transmission line; and a controlling portion configured to control the distance changing portion, wherein said apparatus is configured such that the terahertz radiation transmitted through the transmission line and the object interact with each other, and wherein the distance changing portion is controlled by using at least information of the terahertz radiation that has interacted with the object and that is detected by the detector.