| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve S/N of a current signal from an optical switch element, and to thereby improve measurement accuracy, in a terahertz pulsed light measuring device. <P>SOLUTION: The optical switch element 6a is disposed on an upper part of a casing 6b of a terahertz pulsed light detector 6 constituting this terahertz pulsed light measuring device, and a current/voltage converter 13 is disposed and formed integrally on the periphery thereof. Hereby, the wiring distance between the optical switch element 6a and the current/voltage converter 13 is shortened, and an influence of a noise to the current signal S<SB>I</SB>outputted from the optical switch element 6a and attenuation of the current signal S<SB>I</SB>are prevented, to thereby perform measurement having excellent S/N, and to improve accuracy. <P>COPYRIGHT: (C)2004,JPO</p> |
