An optical fiber probe for humidity monitoring based on a new reflection sensing technique for detecting thermal lens is proposed This sensing probe is based on the technique, which is originally developed in our earlier work Due to the reflection...
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44(9A) 6820-6822 2005年9月 [査読有り]
Methods to achieve ultra-high-sensitivity measurement of metal thin-film thickness by photothermal mirage detection are proposed. These methods apply 1), sample surface coating and 2) a semi-cylindrical lens for pumping beam focusing. Consequently...
An optical fiber humidity sensor based on a thermal lens detection technique is proposed. This sensor allows us to measure humidity without special treatment of the clad of optical fiber in spite of a certain optical absorption path-length under 5...
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44(6B) 4394-4398 2005年6月 [査読有り]
An effective and stable method to enhance the sensitivity for photothermal measurements was proposed. The effectiveness of our method was proven by measuring the thickness of metal thin-film samples. It features sample surface coatings to improve ...
国際学部
工学部