| 54 |
Title |
TI |
[EN] Method and apparatus for measuring and monitoring optical properties based on a ring-resonator |
| 71/73 |
Applicant/owner |
PA |
HARVARD COLLEGE, US
|
| 72 |
Inventor |
IN |
FISCHER PEER, US
;
VOLLMER FRANK, US
|
| 22/96 |
Application date |
AD |
Apr 6, 2006 |
| 21 |
Application number |
AN |
39860806 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Nov 4, 2008 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
US
66878405
Apr 6, 2005
|
33
31
32 |
PRC
PRN
PRD |
US
70500205
Aug 3, 2005
|
| 51 |
IPC main class |
ICM |
G01B 9/02
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
G01N 2021/0346
G01N 2021/432
G01N 2021/7789
G01N 21/05
G01N 21/23
G01N 21/39
G01N 21/45
G01N 21/553
G01N 21/7746
G02B 2006/1213
|
|
MCD main class |
MCM |
G01B 9/02
(2006.01)
|
|
MCD secondary class |
MCS |
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] A method and apparatus for performing refractive index, birefringence and optical activity measurements of a material such as a solid, liquid, gas or thin film. The apparatus has an optical ring-resonator with a closed optical path that constitutes a cavity. A sample is introduced into the optical path of the resonator such that the light in the resonator is transmitted through the sample and relative and/or absolute shifts of the resonance frequencies or changes of the characteristics of the transmission spectrum are observed. A change in the transfer characteristics of the resonant ring, such as a shift of the resonance frequency, is related to a sample's refractive index (refractive indices) and/or change thereof. A reflecting surface may be introduced in a ring resonator. The reflecting surface can be raster-scanned for the purpose of height-profiling surface features. |
| 56 |
Cited documents identified in the search |
CT |
JP000H10246694A
US000004995697A
US000005009505A
US000005231611A
US000005538850A
US000005663790A
US000006721053B1
US000007019847B1
US000007123800B2
|
| 56 |
Cited documents indicated by the applicant |
CT |
US000006490039B2
US000006842548B2
US000006901101B2
US020020140946A1
US020030098971A1
US020040023396A1
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
H. Okamura and K. Iwatsuki, "A Finesse-Enhanced Er-Doped-Fiber Ring Resonator," Journal of Lightwave Technology, vol. 9, No.11 (Nov. 1991). 1
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
G01N 21/21
G01N 21/23
|
