专利详情

专利名称	Laser radiation detector using polyvinylidene fluoride film
申请号	US8641187A	专利类型	US
公开（公告）号	US4906849A	公开（授权）日	1990.03.06
申请（专利权）人	中国科学院物理研究所	发明（设计）人	DUO WANG S ; ZAO FAN L
主分类号	G01J5/02	IPC主分类号	G01J5/02
专利有效期	Laser radiation detector using polyvinylidene fluoride film 至Laser radiation detector using polyvinylidene fluoride film	法律状态
说明书摘要	The present invention is a pyroelectric radiation detector using a polyvinylidene fluoride film (PVDF) as the sensitive material and having graphite in contact with one side of the film. The detector can have a planar or a conical cavity configuration. The sensitivity of this detector is in the range of 5 to 10 V/J, and the response time is shorter than 0.5 ms. This detector can be used to directly detect pulse laser radiation within a spectral range of 0.25 mu m to 25 mu m and having a power density as high as 100 MW/cm2. The detector is also suitable for other light radiations ranging from violet to infrared wavelength. It can be used, for example, as an infrared detector, as a radiation sensor for measuring temperature, as a detector for a standard radiation meter, and as a light trap for the equivalent black body absorption.