Methods and apparatuses for label-free particle analysis
First Claim
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1. An apparatus comprising:
- a light generating system configured to produce a first set of light pulses in a first wavelength region and a second set of light pulses in a second wavelength region, wherein the first and the second wavelength regions do not substantially overlap;
a first optical system coupled to the light generating system, the first optical system comprising a first dispersion control module configured to positively chirp the first set of light pulses and a second dispersion module configured to negatively chirp the second set of light pulses;
a second optical system coupled to the first optical system, the second optical system comprising optics configured to combine the first set of chirped light pulses and the second set of chirped light pulses into a set of combined light pulses, wherein each of the combined light pulses comprises a first pulse from the first set of chirped light pulses and a second pulse from the second set of chirped light pulses; and
a flow cell coupled to the second optical system and configured to convey, in a flow, particles for analysis, wherein at least one of the particles is exposed to a plurality of the combined light pulses.
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Abstract
An apparatus to provide a label-free or native particle analysis comprises a light generating system producing first light pulses at a first wavelength and second light pulses at a second wavelength; and a flow cell coupled to the light generating system to convey particles for analysis. The light generating system is configured to chirp at least one of the first light pulses and the second light pulses to analyze the particles.
17 Citations
12 Claims
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1. An apparatus comprising:
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a light generating system configured to produce a first set of light pulses in a first wavelength region and a second set of light pulses in a second wavelength region, wherein the first and the second wavelength regions do not substantially overlap; a first optical system coupled to the light generating system, the first optical system comprising a first dispersion control module configured to positively chirp the first set of light pulses and a second dispersion module configured to negatively chirp the second set of light pulses; a second optical system coupled to the first optical system, the second optical system comprising optics configured to combine the first set of chirped light pulses and the second set of chirped light pulses into a set of combined light pulses, wherein each of the combined light pulses comprises a first pulse from the first set of chirped light pulses and a second pulse from the second set of chirped light pulses; and a flow cell coupled to the second optical system and configured to convey, in a flow, particles for analysis, wherein at least one of the particles is exposed to a plurality of the combined light pulses. - View Dependent Claims (2, 3, 4)
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5. An apparatus comprising:
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a light generating system configured to produce a first set of light pulses in a first wavelength region and a second set of light pulses in a second wavelength region, wherein the first and the second wavelength regions do not substantially overlap; a first optical system coupled to the light generating system, the first optical system comprising a first dispersion control module configured to positively chirp the first set of light pulses and a second dispersion module configured to negatively chirp the second set of light pulses; a second optical system coupled to the first optical system, the second optical system comprising optics configured to combine the first set of chirped light pulses and the second set of chirped light pulses into a set of combined light pulses, wherein each of the combined light pulses comprises a first pulse from the first set of chirped light pulses and a second pulse from the second set of chirped light pulses; and a sample holder coupled to the second optical system and configured to hold sample for analysis, wherein at least a portion of the sample is exposed to a plurality of the combined light pulses. - View Dependent Claims (6, 7, 8)
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9. An apparatus comprising:
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a light generating system configured to produce a first set of light pulses in a first wavelength region and a second set of light pulses in a second wavelength region, wherein the first and the second wavelength regions do not substantially overlap, and wherein the light generating system is internally configured to positively chirp the first set of light pulses and negatively chirp the second set of light pulses; a first optical system coupled to the light generating system, the first optical system comprising optics configured to combine the first set of chirped light pulses and the second set of chirped light pulses into a set of combined light pulses, wherein each of the combined light pulses comprises a first pulse from the first set of chirped light pulses and a second pulse from the second set of chirped light pulses; and a sample holder coupled to the first optical system and configured to hold particles for analysis, wherein at least one of the particles is exposed to a plurality of the combined light pulses. - View Dependent Claims (10)
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11. An apparatus comprising:
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a light generating system configured to produce a first set of amplified light pulses in a first wavelength region and a second set of amplified light pulses in a second wavelength region, wherein the first and the second wavelength regions do not substantially overlap; a first optical system coupled to the light generating system, the first optical system comprising a first dispersion control module configured to positively chirp the first set of amplified light pulses and a second dispersion module configured to negatively chirp the second set of amplified light pulses; a second optical system coupled to the first optical system, the second optical system comprising optics configured to combine the first set of chirped amplified light pulses and the second set of chirped amplified light pulses into a set of combined light pulses, wherein each of die combined light pulses comprises a first pulse from the first set of chirped amplified light pulses and a second pulse from the second set of chirped amplified light pulses; and a flow cell coupled to the first optical system and configured to convey, in a flow, particles for analysis, wherein at least one of the particles is exposed to at least one of the combined light pulses.
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12. An apparatus comprising:
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a light generating system configured to produce a first set of amplified light pulses in a first wavelength region and a second set of amplified light pulses in a second wavelength region, wherein the first and the second wavelength regions do not substantially overlap; a first optical system coupled to the light generating system, the first optical system comprising a first dispersion control module configured to positively chirp the first set of amplified light pulses and a second dispersion module configured to negatively chirp the second set of amplified light pulses; a second optical system coupled to the first optical system, the second optical system comprising optics configured to combine the first set of chirped amplified light pulses and the second set of chirped amplified light pulses into a set of combined light pulses, wherein each of the combined light pulses comprises a first pulse from the first set of chirped amplified light pulses and a second pulse from the second set of chirped amplified light pulses; and a sample holder coupled to the first optical system and configured to hold a sample for analysis, wherein at least a portion of the sample is exposed to at least one of the combined light pulses.
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Specification