| 54 |
Title |
TI |
[EN] Circular birefringence refractometer: method and apparatus for measuring optical activity |
| 71/73 |
Applicant/owner |
PA |
HARVARD COLLEGE, US
|
| 72 |
Inventor |
IN |
FISCHER PEER, US
;
GHOSH AMBARISH, US
|
| 22/96 |
Application date |
AD |
Jun 27, 2007 |
| 21 |
Application number |
AN |
30584007 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Jun 14, 2011 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
US
2007072248
Jun 27, 2007
|
33
31
32 |
PRC
PRN
PRD |
US
80607406
Jun 28, 2006
|
| 51 |
IPC main class |
ICM |
G01J 4/00
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
G01J 4/02
G01N 21/23
|
|
MCD main class |
MCM |
G01J 4/00
(2006.01)
|
|
MCD secondary class |
MCS |
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] A system and method for detection and measurement of circular birefringences in materials that exhibit the Faraday effect. The method and apparatus permit detection of optical activities via the difference in the directions of propagation the left- and the right-circularly polarized light (components). A beam of light is directed at an interface formed by the optically active medium and another medium such that a difference in the angles of refraction and/or reflection and/or diffraction between the left- and the right-circularly polarized components of the light beam can be detected. The difference in the propagation directions between the two circularly polarized light components is measured on a position sensitive detector and/or is detected as an intensity difference. |
| 56 |
Cited documents identified in the search |
CT |
US000005486940A
US000006687012B2
US000007599062B2
US020030081221A1
US020050094144A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
US000006166807A
US000006466320B1
US000006620622B1
US000007301633B2
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
Cartwright, Jon; "Chiral Liquid Splits Light by Polarization"; PhysicsWorld.com; Nov. 7, 2006. 0
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
CN000104900290A
CN000108020504A
US000011268902B2
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
G01J 4/00
|
