Apparatus and method for cross axis parallel spectroscopy
First Claim
1. An apparatus comprising:
- at least one first spectral separating arrangement which is structured to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation;
at least one second arrangement which is configured to receive the at least one second electro-magnetic radiation and produce at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one third electromagnetic radiation, wherein orientations of the respective first and second dispersive axes are different from one another; and
at least one third spectral separating arrangement which is structured to receive at least one third electro-magnetic radiation and generate at least one fourth electro-magnetic radiation, wherein a third spectrum of the at least one fourth electro-magnetic radiation is dispersed along at least one third dispersive axis with respect to a propagation direction of the at least one fourth electro-magnetic radiation, wherein orientations of the respective second and third dispersive axes are different from one another, and wherein the orientations of the respective first and third dispersive axes are different from one another.
1 Assignment
0 Petitions
Accused Products
Abstract
An exemplary embodiment of apparatus and method to measure and filter the spectrum of electro-magnetic radiation using multiple dispersive elements, such as diffraction gratings or VIPA etalons, concatenated in a cross-axis orthogonal arrangement can be provided. For example, it is possible to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation using at least one first spectral separating arrangement. A first spectrum of the second electro-magnetic radiation can be dispersed along at least one first dispersive axis with respect to a propagation direction of the second electro-magnetic radiation. In addition, it is possible to, using at least one second arrangement, receive the second electro-magnetic radiation and produce at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the third electromagnetic radiation. The orientations of the respective first and second dispersive axes can be different from one another. The first and/or second dispersive arrangements can be VIPA etalon arrangements.
291 Citations
22 Claims
-
1. An apparatus comprising:
-
at least one first spectral separating arrangement which is structured to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation; at least one second arrangement which is configured to receive the at least one second electro-magnetic radiation and produce at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one third electromagnetic radiation, wherein orientations of the respective first and second dispersive axes are different from one another; and at least one third spectral separating arrangement which is structured to receive at least one third electro-magnetic radiation and generate at least one fourth electro-magnetic radiation, wherein a third spectrum of the at least one fourth electro-magnetic radiation is dispersed along at least one third dispersive axis with respect to a propagation direction of the at least one fourth electro-magnetic radiation, wherein orientations of the respective second and third dispersive axes are different from one another, and wherein the orientations of the respective first and third dispersive axes are different from one another. - View Dependent Claims (2, 5, 6, 7, 8, 9, 11, 12)
-
-
3. An apparatus comprising:
-
at least one first spectral separating arrangement which is structured to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation; and at least one second arrangement which is configured to receive the at least one second electro-magnetic radiation and produce at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one third electromagnetic radiation, wherein orientations of the respective first and second dispersive axes are different from one another, and wherein the at least one second arrangement is an optical arrangement which rotates an orientation of the spectrum of the at least one second electromagnetic radiation. - View Dependent Claims (4)
-
-
10. An apparatus comprising:
-
at least one first spectral separating arrangement which is structured to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation; and at least one second arrangement which is configured to receive the at least one second electro-magnetic radiation and produce at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one third electromagnetic radiation, wherein orientations of the respective first and second dispersive axes are different from one another, and a spatial filtering arrangement which is configured to modify at least one property of at least one portion of at least one of the at least one second electro-magnetic radiation or the at least one third electro-magnetic radiation. - View Dependent Claims (13)
-
-
14. An apparatus comprising:
-
a first VIPA etalon arrangement which is structured to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation; and a second VIPA etalon arrangement which is structured to receive at least one third electro-magnetic radiation associated with the at least one second electro-magnetic radiation and generate at least one fourth electro-magnetic radiation, wherein a second spectrum of the at least one fourth electro-magnetic radiation is dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one fourth electro-magnetic radiation, and wherein the orientations of the first and second dispersive axes are different from one another. - View Dependent Claims (15, 16, 17, 18)
-
-
19. A method comprising:
-
receiving at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation using a first VIPA etalon arrangement, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation; receiving at least one third electro-magnetic radiation associated with the at least one second electro-magnetic radiation using a second VIPA etalon arrangement; and generating at least one fourth electro-magnetic radiation using the second VIPA etalon arrangement, wherein a second spectrum of the at least one fourth electro-magnetic radiation is dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one fourth electro-magnetic radiation, and wherein the orientations of the first and second dispersive axes are different from one another.
-
-
20. An apparatus comprising:
-
a first dispersive arrangement which is structured to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation, wherein the first dispersive arrangement includes a flat planar grating; and a second dispersive arrangement which is structured to receive at least one third electro-magnetic radiation associated with the at least one second electro-magnetic radiation and generate at least one fourth electro-magnetic radiation, wherein a second spectrum of the at least one fourth electro-magnetic radiation is dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one fourth electro-magnetic radiation, and wherein the angle between the first and second dispersive axes is greater than about 15 degrees. - View Dependent Claims (21)
-
-
22. A method comprising:
-
with at least one first spectral separating arrangement, receiving at least one first electro-magnetic radiation, and generating at least one second electro-magnetic radiation, wherein a first spectrum of the at least one second electro-magnetic radiation is dispersed along at least one first dispersive axis with respect to a propagation direction of the at least one second electro-magnetic radiation; and with at least one second optical arrangement, receiving the at least one second electro-magnetic radiation, and producing at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the at least one third electromagnetic radiation, wherein orientations of the respective first and second dispersive axes are different from one another; and rotating an orientation of the spectrum of the at least one second electromagnetic radiation.
-
Specification