Abstract: A spectral imaging device (1312) for capturing one or more, two-dimensional, spectral images (1313A) of a sample (1310) including (i) an image sensor (1328), (ii) an illumination source (1314), (iii) a beam path adjuster (1362), and (iv) a control system (1330). The illumination source (1314) that generates an illumination beam (1316) that is directed along an incident sample beam path (1360) at the sample (1310). The beam path adjuster (1362) selectively adjusts the incident sample beam path (1360).

Abstract: A fluid analyzer (214) that analyzes a sample (12) includes (i) an analyzer frame (236); (ii) a module (216) that includes a test cell assembly (242) that receives the sample (12) and a module frame (244) that retains the test cell assembly (242); (iii) a laser assembly (238) that generates a laser beam (239A) that is directed through the test cell assembly (242), the laser assembly (238) being coupled to the analyzer frame (236); (iv) a signal detector assembly (232) that collects a test signal light (239B) transmitted through the test cell assembly (242), the signal detector assembly (232) being coupled to the analyzer frame (236); and (v) a coupler assembly (245) that selectively couples the module frame (244) to the analyzer frame (236).

Abstract: A fluid analyzer (214) that analyzes a sample (12) includes an analyzer frame (236); a test cell assembly (242) that receives the sample (12); a laser assembly (238) that generates a laser beam (239A) a signal detector assembly (232) and a self-check assembly (230). The self-check assembly (230) includes (i) a check frame (230A); (ii) a check substance (230E) with known spectral characteristics; and (iii) a check frame mover (230B) that selectively moves the check frame (230A) between a self-check position (231 B) and a test position (231 A) relative to the analyzer frame (236). In the self-check position (231 B), the laser beam (239A) is directed through the check substance (230E) to evaluate the performance of the fluid analyzer (214). In the test position (231 A), the laser beam (239A) is directed through the sample (12) in the test cell assembly (242) to evaluate the sample (12).

Abstract: An assembly (10) for generating a laser beam (12) includes a beam steering assembly (18); a laser assembly (16) that is tunable over a tunable range; and a controller (20). The laser assembly (16) generates a laser beam (12) that is directed at the beam steering assembly (18). The controller (20) dynamically controls the beam steering assembly (18) to dynamically steer the laser beam (12) as the laser assembly (16) is tuned over at least a portion of the tunable range. As a result thereof, the laser beam (12) is actively steered along a desired beam path (12A) while the wavelength of the laser beam (12) is varied.

Abstract: A spectral imaging device (1312) for capturing one or more, two-dimensional, spectral images (1313A) of a sample (1310) including (i) an image sensor (1328), (ii) an illumination source (1314), (iii) a beam path adjuster (1362), and (iv) a control system (1330). The illumination source (1314) that generates an illumination beam (1316) that is directed along an incident sample beam path (1360) at the sample (1310). The beam path adjuster (1362) selectively adjusts the incident sample beam path (1360).

Abstract: An analyzer system (10) for analyzing a sample (12) includes a MIR analyzer (34) for spectrally analyzing the sample (12) while the sample (12) is flowing in the MIR analyzer (34). The MIR analyzer (34) includes (i) a MIR flow cell (35C) that receives the flowing sample (12), (ii) a MIR laser source (35A) that directs a MIR beam (35B) in a MIR wavelength range at the sample (12) in the MIR flow cell (35C), and (iii) a MIR detector (35D) that receives light from the sample (12) in the MIR flow cell (35C) and generates MIR data of the sample (12) for a portion of the MIR wavelength range.

Abstract: A spectral imaging device (12) includes an image sensor (28), a tunable light source (14), an optical assembly (17), and a control system (30). The optical assembly (17) includes a first refractive element (24A) and a second refractive element (24B) that are spaced apart from one another by a first separation distance. The refractive elements (24A) (24B) have an element optical thickness and a Fourier space component of the optical frequency dependent transmittance function. Further, the element optical thickness of each refractive element (24A) (24B) and the first separation distance are set such that the Fourier space components of the optical frequency dependent transmittance function of each refractive element (24A) (24B) fall outside a Fourier space measurement passband.

Abstract: A method for identifying one or more analytes (12A)(12B)(12C) includes (i) directing a solvent (18) into a test cell (22); (ii) directing a first laser probe beam (26) at the solvent (18) in the test cell (22); (iii) acquiring a solvent intensity spectrum of the solvent (18); (iv) directing a sample (12) that includes one or more analytes (12A)(12B)(12C) and the solvent (18) into the flow cell (22); (v) directing a second laser probe beam (26) at the sample (12) in the test cell (22); (vi) acquiring a sample intensity spectrum of the sample (12); (vii) calculating a solvent referenced transmittance spectrum that details a solvent reference transmittance as a function of wavelength using the solvent intensity spectrum and the sample intensity spectrum; and (viii) identifying one or more analytes (12A)(12B)(12C) in the sample (12) using the solvent referenced transmittance spectrum.

Abstract: A spectral imaging device (12) includes an image sensor (28), a tunable light source (14), an optical assembly (17), and a control system (30). The optical assembly (17) includes a first refractive element (24A) and a second refractive element (24B) that are spaced apart from one another by a first separation distance. The refractive elements (24A) (24B) have an element optical thickness and a Fourier space component of the optical frequency dependent transmittance function. Further, the element optical thickness of each refractive element (24A) (24B) and the first separation distance are set such that the Fourier space components of the optical frequency dependent transmittance function of each refractive element (24A) (24B) fall outside a Fourier space measurement passband.

Abstract: A spectral imaging device (12) includes an image sensor (28), a tunable light source (14), an optical assembly (17), and a control system (30). The optical assembly (17) includes a first refractive element (24A) and a second refractive element (24B) that are spaced apart from one another by a first separation distance. The refractive elements (24A) (24B) have an element optical thickness and a Fourier space component of the optical frequency dependent transmittance function. Further, the element optical thickness of each refractive element (24A) (24B) and the first separation distance are set such that the Fourier space components of the optical frequency dependent transmittance function of each refractive element (24A) (24B) fall outside a Fourier space measurement passband.

Abstract: A method for identifying one or more analytes (12A)(12B)(12C) includes (i) directing a solvent (18) into a test cell (22); (ii) directing a first laser probe beam (26) at the solvent (18) in the test cell (22); (iii) acquiring a solvent intensity spectrum of the solvent (18); (iv) directing a sample (12) that includes one or more analytes (12A)(12B)(12C) and the solvent (18) into the flow cell (22); (v) directing a second laser probe beam (26) at the sample (12) in the test cell (22); (vi) acquiring a sample intensity spectrum of the sample (12); (vii) calculating a solvent referenced transmittance spectrum that details a solvent reference transmittance as a function of wavelength using the solvent intensity spectrum and the sample intensity spectrum; and (viii) identifying one or more analytes (12A)(12B)(12C) in the sample (12) using the solvent referenced transmittance spectrum.

Abstract: A spectral imaging device (12) includes an image sensor (28), a tunable light source (14), an optical assembly (17), and a control system (30). The optical assembly (17) includes a first refractive element (24A) and a second refractive element (24B) that are spaced apart from one another by a first separation distance. The refractive elements (24A) (24B) have an element optical thickness and a Fourier space component of the optical frequency dependent transmittance function. Further, the element optical thickness of each refractive element (24A) (24B) and the first separation distance are set such that the Fourier space components of the optical frequency dependent transmittance function of each refractive element (24A) (24B) fall outside a Fourier space measurement passband.

Abstract: A mid-infrared objective lens assembly (10) includes a plurality of spaced apart, refractive lens elements (20) that operate in the mid-infrared spectral range, the plurality of lens elements (20) including an aplanatic first lens element (26) that is closest to an object (14) to be observed. The first lens element (26) has a forward surface (36) that faces the object (14) and a rearward surface (38) that faces away from the object (14). The forward surface (36) can have a radius of curvature that is negative.

Abstract: A spectral imaging device (12) for generating an image (13A) of a sample (10) includes (i) an image sensor (30); (ii) a tunable light source (14) that generates an illumination beam (16) that is directed at the sample (10); (iii) an optical assembly (22) that collects light from the sample (10) and forms an image of the sample (10) on the image sensor (30); and (iv) a control system (32) that controls the tunable light source (14) and the image sensor (30). During a time segment, the control system (32) (i) controls the tunable light source (14) so that the illumination beam (16) has a center wavenumber that is modulated through a first target wavenumber with a first modulation rate; and (ii) controls the image sensor (30) to capture at least one first image at a first frame rate. Further, the first modulation rate is equal to or greater than the first frame rate.

Abstract: A spectral imaging device (12) includes an image sensor (28), a tunable light source (14), an optical assembly (17), and a control system (30). The optical assembly (17) includes a first refractive element (24A) and a second refractive element (24B) that are spaced apart from one another by a first separation distance. The refractive elements (24A) (24B) have an element optical thickness and a Fourier space component of the optical frequency dependent transmittance function. Further, the element optical thickness of each refractive element (24A) (24B) and the first separation distance are set such that the Fourier space components of the optical frequency dependent transmittance function of each refractive element (24A) (24B) fall outside a Fourier space measurement passband.

Abstract: An imaging and capture micro-dissection microscope (12) for spectrally analyzing a sample (10) and isolating a region of interest (210) in the sample (10) includes (i) a stage (26A) that retains the sample (10); (ii) an analysis laser assembly (14) that generates a coherent interrogation beam (16A) that is directed at the sample (10), the interrogation beam (16A) having a center wavelength that is in the infrared region; (iii) an image sensor (24A) that receives light from the sample (10), the image sensor (24A) capturing image information that is used to identify the region of interest (210) in the sample (10); (iv) a separation assembly (18) that separates the region of interest (210) from the sample (10) while the sample (10) is retained by the stage (26A); and (v) a capturing assembly (20) that captures the region of interest (210).

Abstract: A spectral imaging device (12) includes an image sensor (28), an illumination source (14), a refractive, optical element (24A), a mover assembly (24C) (29), and a control system (30). The image sensor (28) acquires data to construct a two-dimensional spectral image (13A) during a data acquisition time (346). The illumination source (14) generates an illumination beam (16) that illuminates the sample (10) to create a modified beam (16I) that follows a beam path (16B) from the sample (10) to the image sensor (28). During the data acquisition time (346), the control system (30) controls the illumination source (14) to generate the illumination beam (16), and controls the image sensor (28) to capture the data. Further, during the data acquisition time (346), an effective optical path segment (45) of the beam path (16B) is modulated.

Abstract: A spectral imaging device (12) includes an image sensor (28), an illumination source (14), a refractive, optical element (24A), a mover assembly (24C) (29), and a control system (30). The image sensor (28) acquires data to construct a two-dimensional spectral image (13A) during a data acquisition time (346). The illumination source (14) generates an illumination beam (16) that illuminates the sample (10) to create a modified beam (16I) that follows a beam path (16B) from the sample (10) to the image sensor (28). During the data acquisition time (346), the control system (30) controls the illumination source (14) to generate the illumination beam (16), and controls the image sensor (28) to capture the data. Further, during the data acquisition time (346), an effective optical path segment (45) of the beam path (16B) is modulated.

Abstract: An assembly (12) for rapid thermal data acquisition of a sample (10) includes a laser source (14), a light sensing device (26), and a control system (28). The laser source (14) emits a laser beam (16) that is directed at the sample (10), the laser beam (16) including a plurality of pulses (233). The light sensing device (26) senses mid-infrared light from the sample (10), the light sensing device (26) including a pixel array (348). The control system (28) controls the light sensing device (26) to capture a plurality of sequential readouts (402) from the pixel array (348) with a substantially steady periodic readout acquisition rate 405. The control system (28) can generate a spectral cube (13) using information from the readouts (402).

Abstract: An imaging microscope for spectrally analyzing a sample includes (i) a laser source that generates an interrogation beam; (ii) an attenuated total reflection assembly that includes an ATR crystal and a sample holder that holds the sample in intimate contact with the ATR crystal; (iii) an objective lens assembly that collects a reflected beam and focuses the reflected beam; and (iv) a two dimensional image sensor that receives the focused, reflected beam and captures two dimensional image information that is used to generate an image of the sample, the image sensor being operable in the mid-infrared range.