Title:
【発明の名称】光度センサ要素ならびに斯かるセンサ要素を用いた光ビーム変調方法およびデバイス
Document Type and Number:
Japanese Patent JP2001511515
Kind Code:
A
Abstract:
A luminous intensity sensor element having a flat disk-shaped element (2) made of material with a high thermal expansion coefficient and of low thermal conductivity, and in turn having, on opposite faces (3, 5), an optically absorbent layer (4) and a reflecting layer (6). On receiving excitation radiation (R), the optically absorbent layer (4) is heated and transmits heat to the flat disk-shaped element (2), which in turn is heated internally in spatially nonuniform manner and is deformed together with the superimposed reflecting layer (6). The reflecting layer (6) receives an incident reference light beam (S) to generate a reflected light beam having optical characteristics ( DELTA phi ) depending on the aforementioned deformation ( DELTA d) and varying in response to the excitation radiation.
Inventors:
Wellin, Maurice
Kenny robert
Sheridan, John
Lucia, Alfredo Carlo
Kenny robert
Sheridan, John
Lucia, Alfredo Carlo
Application Number:
JP2000504429A
Publication Date:
August 14, 2001
Filing Date:
July 20, 1998
Export Citation:
Assignee:
European Atomic Energy Community
International Classes:
G01B9/02; G01J1/02; G01J5/38; G02B26/02; (IPC1-7): G01J5/38; G01B9/02; G01J1/02; G02B26/02
Attorney, Agent or Firm:
Takashi Ishida (4 others)