Method And Apparatus For Performing Optical Imaging Using Frequency-domain Interferometry

Abstract

An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond.


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Document History
  • Publication: Apr 22, 2014
  • Application: Dec 19, 2012
    US US 201213720507 A
  • Priority: Dec 19, 2012
    US US 201213720507 A
  • Priority: Jul 27, 2011
    US US 201113191885 A
  • Priority: Jun 7, 2010
    US US 79552910 A
  • Priority: Apr 27, 2006
    US US 57756206 A
  • Priority: Sep 8, 2004
    US US 2004/0029148 W
  • Priority: Oct 27, 2003
    US US 51476903 P

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