Tornado Spectral Systems Inc.

Tornado Medical Systems, Inc.

Bradford Bartholomew Behr

Jeffrey T Meade

Andrew T Cenko

Arsen R Hajian

Yusuf Bismilla

Brandon Joseph Desroches

Jeffrey Thomas Meade

Various embodiments are provided herein for an optical spectroscopy probe which generally includes a probe head having optical elements for coupling to an excitation fiber for receiving laser energy therefrom and generating a collimated excitation light beam; and a sample optic adjacent to the probe head, the sample optic having at least one optical element with two non-parallel surfaces to receive the collimated excitation light beam, to transmit the collimated excitation light beam to a sample, and to collect at least one afocal returning scattered light beam that is reflected from the sample.

Apparatus and method for reducing interference in an optical spectroscopy probe having a collimated sample beam

Various embodiments are described that provide an optical spectroscopy probe which has a probe head with a first attachment portion with at least one component having a first shape, a sample optic subassembly with a second attachment portion that is proximal to the probe head and has at least one component with a second shape that is complimentary to the first shape for releasably engaging the first attachment portion of the probe head, and a locking mechanism to hold the sample optic subassembly and the probe head together and constrain relative motion therebetween along at least five degrees of freedom.

Mechanical mount for removable front-end optics on an optical spectroscopy probe

A hybrid image-pupil optical reformatter and method for optional use with a spectrometer is disclosed, which performs beam slicing in pupil space and stacks replicas of the input source generated from the pupil beam slices in image space. The optical reformatter comprises a collimator which receives an input light and produces a collimated beam; a first optical element which receives the collimated beam, redirects portions of the collimated beam back toward the collimator as reimaged beams and permits portions of the collimated beam to pass; a second optical element which receives the reimaging beams and redirects the reimaging beams back toward the collimator and the first optical element; to form an output beam comprising the portions of the collimated beams that are not redirected toward the collimator by the first optical element. Also disclosed is the use of the reformatter for reformatting the input light of a spectrometer system, and the use of the reformatter as part of a spectrometer device.

Hybrid image-pupil optical reformatter

A beam reformatter to receive and split a beam into a plurality of beam portions, and further distribute and propagate two or more of the plurality of beam portions in substantially the same direction to create a reformatted composite beam, wherein the plurality of beam portions each contain the same spatial and spectral information as the received beam. An optical slicer to receive and configure a beam for generating an output spot from the configured beam, comprising: a beam reformatter to receive and split a beam into a plurality of beam portions, and further distribute and propagate two or more of the plurality of beam portions in substantially the same direction to create a reformatted composite beam; and at least one of a beam compressor and a beam expander wherein the plurality of beam portions each contain the same spatial and spectral information as the received beam; and the output spot has different dimensions relative to a spot produced in the same manner from the beam received by the optical slicer.

Optical slicer for improving the spectral resolution of a dispersive spectrograph

A spectrograph including light beam reformatting element(s), beam expander(s), dispersive element(s) and light receiving element(s). The light beam reformatting element(s) reformat a received light beam into a reformatted light beam having a first dimension along a first axis that is larger than a dimension of the received light beam along the first axis and a second dimension along a second axis substantially orthogonal to the first axis that is smaller than a dimension of the received light beam along the second axis. The beam expander(s) anamorphically expand the reformatted light beam along the second axis into an expanded light beam. The dispersive element(s) disperse the expanded light beam along the second axis, resulting in a dispersed light beam. The light receiving element(s) receive the dispersed light beam. The light receiving element(s) may include one or more detectors to measure spectral intensity of the dispersed light beam.

Spectrograph with anamorphic beam expansion

An optical coherence tomography (OCT) system comprising: a splitter configured to receive and split an optical source beam generating a reference beam and a sample beam, the sample beam directed at a sample and interacting with the sample to generate a return beam; a delay module configured to receive and introduce an optical delay in the reference beam, to generate a delayed reflected beam configured to interfere with the return beam to generate an interferogram; a spatial filter system capable of filtering randomly scattered light from at least one of the return beam or the interferogram; and a detector array to receive the interferogram for spatial and spectral analysis.

Time domain-frequency domain optical coherence tomography apparatus and methods for use

An optical slicer for generating an output spot comprising an image compressor which receives a substantially collimated input beam and compresses the beam, wherein the input beam, if passed through a focusing lens, produces an input spot; an image reformatter which receives the compressed beam to reformat the beam into a plurality of sliced portions of the compressed beam and vertically stacks the portions substantially parallel to each other; and an image expander which expands the reformatted beam to produce a collimated output beam which, if passed through the focusing lens, produces the output spot that is expanded in a first dimension and compressed in a second dimension relative to the input spot.

Growing community of inventors

Silver Spring, MD, United States of America

Bradford Bartholomew Behr