Abstract: Portable optical coherence tomography (OCT) devices including at least one mirror configured to scan at least two directions are provided. The portable OCT devices are configured to provide a portable interface to a sample that can be aligned to the sample without repositioning the sample. Related systems are also provided.

Abstract: Disclosed herein are systems and methods for deep spectroscopic imaging of a biological sample. In an aspect, a system includes a broad bandwidth light source configured to generate an illumination beam, an interferometer, and a spectrometer. The interferometer includes a first beam splitter configured to split the illumination beam into an incident beam and a reference beam; an optical lens directs the incident beam onto a biological sample at a predefined offset from corresponding optical axis, and receive a beam scattered from the biological sample. The beams are configured to intersect with each other within a focal zone of the optical lens. Photons of the incident beam undergo multiple forward scattering within the biological sample. A second beam splitter configured to receive and superimpose the scattered and reference beams, to generate an interference beam. The spectrometer uses a spectral domain detection technique to assess tissue properties of the biological sample.

Abstract: A method and system for secure access to data files copied onto a second storage device from a first storage device. A computer receives data from a first storage device that is in communication with the computer. A data file is stored to a second storage device. A passkey is generated and associated with the data file. A passkey image file corresponding to the passkey is generated. The passkey image file is transmitted to the first storage device for storage. Subsequent access to the data file on the second storage device requires entry of the passkey. The passkey is only accessible to a user that has access to read the passkey image file on the first storage device.

Abstract: Embodiments described herein involve low-coherence interferometry (LCI) techniques which enable acquisition of structural and depth information regarding a sample of interest. In one embodiment, a “swept-source” (SS) light source is used in LCI to obtain structural and depth information about a sample. The swept-source light source can be used to generate a reference signal and a signal directed towards a sample. Light scattered from the sample is returned as a result and mixed with the reference signal to achieve interference and thus provide structural information regarding the sample. Depth information about the sample can be obtained using Fourier domain concepts as well as time domain techniques. Several LCI embodiments employing a swept-source light source are disclosed herein. In another embodiment disclosed herein, an a/LCI system and method is provided that is based on a time domain system and employs a broadband light source.

Abstract: A spectrometer in accordance with the present disclosure may provide multiple optical paths from the inputs to the camera, where the paths are as nearly identical as possible. For example, a spectrometer in accordance with the present disclosure may include multiple inputs, input optics, a diffraction grating, output optics, and a camera. The multiple inputs may be imaged onto different sections of the camera using the same input optics, the same diffraction grating, and the same output optics.

Abstract: An optical coherence tomography system may have a reflector system that reflects light from a light source to provide a plurality of light rays that fall within different wavelength ranges, optical componentry that directs a subset of a first beam of light including the plurality of light rays to an object to be imaged, a detector that detects the subset after reflection from the object, and signal processing componentry that processes signals from the detector to provide an optical coherence tomography image of the object. The reflector system may be configured such that the optical pathways followed by the light rays change in length at an even increment, so that the first beam of light will project wavelength groups at relatively even time increments. The optical pathways may be collinear or offset from each other. An interleaver may be used to enable detection of the first beam by multiple detectors.

Abstract: A method and system for secure access to data files copied onto a second storage device from a first storage device. A computer receives data from a first storage device that is in communication with the computer. A data file is stored to a second storage device. A passkey is generated and associated with the data file. A passkey image file corresponding to the passkey is generated. The passkey image file is transmitted to the first storage device for storage. Subsequent access to the data file on the second storage device requires entry of the passkey. The passkey is only accessible to a user that has access to read the passkey image file on the first storage device.

Abstract: Methods of analyzing three dimensional data sets obtained from a sample over time are provided. The methods include aligning first and second volume intensity projection (VIP) images based on at least one landmark in the first and second VIP images. The first and second VIP images are obtained from a first three dimensional data set obtained from the sample at a first time and a second three dimensional data set obtained from the sample at a second time, respectively.

Abstract: A non-rotating wheel cover assembly (1) that attaches to a wheel via an universal lug mounting bracket (2). The universal lug mounting bracket is made up of a preferably circular mounting plate (4) having a plurality of slots (24) extending from a central aperture (14) to an outer edge (35) of the mounting plate. The slots are positioned around the mounting plate to accommodate various lug patterns, such as wheels having five lugs (3) or six lugs. The slots also accommodate wheels having various diameters where the lugs are spaced further or closer to the center of a wheel. An inner plate (10) having a bearing (17) located therein engages an axle (18) extending from an outer plate (20). A ridge (23) located at a base (24) of the axle prevents damage to a wheel cover (8) if the wheel cover comes into contact with a curb.

Abstract: Methods of stimulating microbial consortia, such as microbial consortia in a geological formation, such as comprising methanogens and other bacteria, for producing methane and other fuels or fuel precursors from coal or other carbonaceous materials, are disclosed along with methods for increasing bioconversion of carbonaceous materials, such as coal, into methane and other useful hydrocarbon products, wherein the consortia respond to electrical stimulation, either physical or chemical.

Abstract: Portable optical coherence tomography (OCT) devices including at least one mirror configured to scan at least two directions are provided. The portable OCT devices are configured to provide a portable interface to a sample that can be aligned to the sample without repositioning the sample. Related systems are also provided.

Abstract: An optical coherence tomography (OCT) imaging system is disclosed. In an embodiment of the invention, an OCT imaging system may include (a) multiple scan geometries, including a lateral scan of a beam perpendicular to the scan direction and a rotating scan where the beam is perpendicular to a curved surface (such as the front of the eye), and (b) a low coherence interferometry engine based on spectral domain interferometry, with a spectrometer capable of ultra deep imaging.

Abstract: A spectrometer in accordance with the present disclosure may provide multiple optical paths from the inputs to the camera, where the paths are as nearly identical as possible. For example, a spectrometer in accordance with the present disclosure may include multiple inputs, input optics, a diffraction grating, output optics, and a camera. The multiple inputs may be imaged onto different sections of the camera using the same input optics, the same diffraction grating, and the same output optics.

Abstract: Low-coherence interferometry (LCI) techniques enable acquisition of structural and depth information of a sample. A “swept-source” (SS) light source may be used. The swept-source light source can be used to generate a reference signal and a signal directed towards a sample. Light scattered from the sample is returned as a result and mixed with the reference signal to achieve interference and thus provide structural information regarding the sample. Depth information about the sample can be obtained using Fourier domain concepts as well as time domain techniques. In another embodiment, an a/LCI system and method is provided that is based on a time domain system and employs a broadband light source. The systems and processes disclosed herein can be used for biomedical applications, included measuring cellular morphology in tissues and in vitro, as well as diagnosing intraepithelial neoplasia, and assessing the efficacy of chemopreventive and chemotherapeutic agents.

Abstract: Portable optical coherence tomography (OCT) devices including at least one mirror configured to scan at least two directions are provided. The portable OCT devices are configured to provide a portable interface to a sample that can be aligned to the sample without repositioning the sample. Related systems are also provided.

Abstract: Portable optical coherence tomography (OCT) devices including at least one mirror configured to scan at least two directions are provided. The portable OCT devices are configured to provide a portable interface to a sample that can be aligned to the sample without repositioning the sample. Related systems are also provided.

Abstract: Frequency domain optical coherence imaging systems have an optical source, an optical detector and an optical transmission path between the optical source and the optical detector. The optical transmission path between the optical source and the optical detector reduces an effective linewidth of the imaging system. The optical source may be a broadband source and the optical transmission path may include a periodic optical filter.

Abstract: Frequency domain optical coherence imaging systems have an optical source, an optical detector and an optical transmission path between the optical source and the optical detector. The optical transmission path between the optical source and the optical detector reduces an effective linewidth of the imaging system. The optical source may be a broadband source and the optical transmission path may include a periodic optical filter.

Abstract: A method and system for wireless intrusion detection, prevention and security management. The method and system provides autonomous wireless intrusion detection and prevention, with minimal or no operator intervention. The method and system includes a smart wireless radio frequency (RF) antenna subsystem with an adaptive RF beamformer for adaptively and dynamically positioning RF null in a wireless RF transmission beam pattern to block one more rouge wireless network devices from accessing a wireless network such as aboard a military ship.

Abstract: Methods of analyzing three dimensional data sets obtained from a sample over time are provided. The methods include aligning first and second volume intensity projection (VIP) images based on at least one landmark in the first and second VIP images. The first and second VIP images are obtained from a first three dimensional data set obtained from the sample at a first time and a second three dimensional data set obtained from the sample at a second time, respectively.