Apparatus and method for low coherence ranging
First Claim
1. An apparatus for imaging at least a portion of a sample, comprising:
- a first interferometric arrangement providing an electro-magnetic radiation; and
a second arrangement configured to receive the electro-magnetic radiation, and configured to generate a resultant electro-magnetic intensity distribution,wherein, along a particular direction, the intensity distribution is approximately constant for at least a predetermined distance, and wherein a wavelength of the electro-magnetic radiation remains approximately the same for at least the predetermined distance at which the intensity distribution is approximately constant.
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Accused Products
Abstract
A system, apparatus and method for performing low coherence ranging of a sample with high transverse resolution and large depth of focus can be provided. For example, an optical ranging system including a light source can be used. Certain exemplary arrangement can be provided, e.g., a first arrangement for directing light from the light source to the sample, a second arrangement for directing reflected light from the sample to a detector, at least one detector, and a third arrangement for processing light data received by the detector and which generates an image can be utilized. Further, for example, an optical element can be provided which can have a transverse resolution defined as .Δris less than or equal to about μ5 m, and a depth of focus Δz of at least about 50 μm.
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Citations
60 Claims
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1. An apparatus for imaging at least a portion of a sample, comprising:
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a first interferometric arrangement providing an electro-magnetic radiation; and a second arrangement configured to receive the electro-magnetic radiation, and configured to generate a resultant electro-magnetic intensity distribution, wherein, along a particular direction, the intensity distribution is approximately constant for at least a predetermined distance, and wherein a wavelength of the electro-magnetic radiation remains approximately the same for at least the predetermined distance at which the intensity distribution is approximately constant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for imaging at least a portion of a sample, comprising:
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a first interferometric arrangement providing an electro-magnetic radiation; and a second arrangement configured to receive the electro-magnetic radiation, and configured to generate a resultant electro-magnetic intensity distribution, wherein, along a particular direction, widths of at least two sections of the intensity distribution are approximately the same, and wherein a wavelength of the electro-magnetic radiation remains approximately the same for at least the at least two sections of the intensity distribution. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method for imaging at least a portion of a sample, comprising:
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a) providing an electro-magnetic radiation using an interferometric arrangement; b) receiving the electro-magnetic radiation and generating a resultant electro-magnetic intensity distribution, wherein, along a particular direction, the intensity distribution is approximately constant for at least a predetermined distance, and wherein a wavelength of the electro-magnetic radiation remains approximately the same for at least the predetermined distance at which the intensity distribution is approximately constant. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for imaging at least a portion of a sample, comprising:
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providing an electro-magnetic radiation using an interferometric arrangement; and receiving the electro-magnetic radiation, and generating a resultant electro-magnetic intensity distribution, wherein, along a particular direction, widths of at least two sections of the intensity distribution are approximately the same, and wherein a wavelength of the electro-macinetic radiation remains approximately the same for at least the at least two sections of the intensity distribution. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. An apparatus for imaging at least a portion of a sample, comprising:
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a first interferometric arrangement providing an electro-magnetic radiation; and a second arrangement provided within the first interferometric arrangement and configured to receive the electro-magnetic radiation, and configured to generate a resultant electro-magnetic intensity distribution, wherein the second arrangement including a third arrangement which is configured to at least partially block at least one first portion of the electro-magnetic radiation, the third arrangement allowing at least one second portion of the electro-magnetic radiation to be provided in a center of the electro-magnetic radiation to pass there through. - View Dependent Claims (52)
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53. An apparatus for imaging at least a portion of a sample, comprising:
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a first interferometric arrangement providing an electro-magnetic radiation; and a second arrangement configured to receive the electro-magnetic radiation, and configured to generate a resultant electro-magnetic intensity distribution, wherein, along a particular direction, a plurality of focal points of the intensity distribution are generated, and wherein a wavelength of the electro-magnetic radiation remains approximately the same along the particular direction for the focal points. - View Dependent Claims (54, 55, 56, 57, 58)
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59. A method for imaging at least a portion of a sample, comprising:
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a) providing an electro-magnetic radiation using an interferometric arrangement; b) at a further arrangement that is provided within the first interferometric arrangement, receiving the electro-magnetic radiation and generating a resultant electro-magnetic intensity distribution, wherein at least one first portion of the electro-magnetic radiation is at least partially blocked by a particular arrangement, and wherein at least one second portion of the electro-magnetic radiation provided in a center of the electro-magnetic radiation is allowed to pass through the particular arrangement.
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60. A method for imaging at least a portion of a sample, comprising:
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providing an electro-magnetic radiation using an interferometric arrangement; and receiving the electro-magnetic radiation, and generating a resultant electro-magnetic intensity distribution, wherein, along a particular direction, a plurality of focal points of the intensity distribution are generated, and wherein a wavelength of the electro-magnetic radiation remains approximately the same along the particular direction for the focal points.
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Specification