Abstract: The invention provides a system and method for secure document verification. In the preferred embodiment, embedded information consists of marks embedded in the interior of the document and are comprised of regions that have refractive index modified to carry information. In the preferred embodiment the marks are not discernable by conventional imaging, spectroscopic or optical polarization techniques, but are discernably by interferometric techniques, such as optical coherence tomography. Multiple alternate embodiments are taught.

Abstract: The invention taught herein provides a method, device and system for modulating or switching electromagnetic radiation by controlling a state of the radiation, such as a polarization state. Radiation is directed at a reflective or transmissive structure, such that the radiation is incident on the structure. The structure includes a property that can be dynamically switched between two configurations, one of which is asymmetric and is configured to modify the polarization characteristic of the radiation. The dynamically configurable structure can be combined with polarization components to achieve modulation. Embodiments suitable for mode-locking a laser and for cavity dumping a mode-locked laser are also disclosed.

Abstract: A media communications system enabling mobile and desktop devices to communicate with websites relevant to a query that is shallow parsed, associated to predetermined categories, and regenerated as a conflated query array that includes extracted entities, associated categories, a location, and a geo-limit parameter. The media communications system further enables real-time messaging between the mobile and desktop devices and the websites, as well as generation of well-formed websites, media, and multimedia, with pre-rendered embedded content, and enables to concurrently and automatically demographically and geographically distributed push notifications to the websites and devices, and embeds relevancy-amplified, geotargeted media and multimedia communications, which media are selected by real-time machine-learned, high-probability consumer interest weighting and relevancy functions that are continuously updated in response to monitored consumer actions.

Abstract: The invention provides a polarized optical system with minimal use of wave plates that provides isolation of the optical source and has optimized signal to noise performance. The polarized optical system in the preferred embodiment is an interferometric optical system, and in particular an optical coherence tomography (OCT) system. Various alternate embodiments are provided.

Abstract: The invention provides a system and method for obtaining ophthalmic measurements whereby the inventive device is configured to be head mountable, automatically axially length aligned with a selected target, and laterally aligned so that light from an OCT source enters through the pupil of the eye under test. The frame of the head mountable OCT is customizable, capable of analyzing both the left and right eye of a subject. The inventive device can be operated by the person undergoing test. Embodiments include mechanisms for eye fixation, lateral, angular and depth scanning of target regions. A variety of embodiments are taught, including the scanning of both eyes of a subject at substantially the same time, and a configuration of a photonic module coupleable with a plurality of frames. Embodiments include a variety of OCT sources, such as MRO, swept source, time domain, and spectral domain.

Abstract: The invention taught herein provides a method, device and system for modulating or switching electromagnetic radiation by controlling a state of the radiation, such as a polarization state. Radiation is directed at a reflective or transmissive structure, such that the radiation is incident on the structure. The structure includes a property that can be dynamically switched between two configurations, one of which is asymmetric and is configured to modify the polarization characteristic of the radiation. The dynamically configurable structure can be combined with polarization components to achieve modulation. Embodiments suitable for mode-locking a laser and for cavity dumping a mode-locked laser are also disclosed.

Abstract: A computer implemented method and system that enables mobile and desktop devices to automatically communicate with websites of brick and mortar businesses, which are relevant to a category of interest and proximate to their current or a prospective geographic location. The system and method further enables generation of well-formed websites, media, and multimedia, and to concurrently and automatically demographically and geographically distribute and push the websites and media to nearby and prospectively interested mobile and desktop devices with relevancy-amplified, geotargeted media and multimedia communications, which media are selected by real-time machine-learned, high-probability consumer interest weighting and relevancy functions that are continuously updated in response to monitored consumer actions.

Abstract: A method, apparatus and system for enhanced OCT measurement is described. The invention provides for using an OCT system with two or more optical sources with different wavelengths from each other to analyze tissue and measure scattering characteristics and absorption properties of a target. Embodiments include using multiple differential states: multiple wavelengths; multiple pressure wave environments; and multiple temperatures. Embodiments also include using temperature stabilization and speckle reduction by means of subjecting the target to one or more pressure waves.

Abstract: The invention teaches a method, apparatus and system for measuring bio-medical attributes of the eye, such as internal or intraocular pressure. The invention enables taking measurements of the relative location of various surfaces of components of the eye under different conditions. The invention provides for applying a pressure disturbance to the eye acoustically and, using non-invasive optical techniques to perform measurements of vibrations or measurements of the time varying relative location of one or more surfaces or structures in a manner correlated with the pressure disturbance.

Abstract: The invention provides a system and method for rapid validation of identity from tissue using registered two dimensional and optical coherence tomography (OCT) scan images. The preferred embodiment provides, for a human fingerprint, validation that the surface fingerprint matches the primary fingerprint. An alternate embodiment provides validation of “aliveness” by ascertaining blood flow. Various embodiments are taught.

Abstract: A micro phonic device capable of measuring very low frequency (sub 100 Hz) pressure waves includes an OCT measuring system that measures the position of one or more surfaces within a target. The device further processes the position measurements to generate a spectrum. In one application the generated spectrum is further processed to associate some signals with bio-sign parameters. Values of the bio-sign parameters are output.

Abstract: The invention provides for generating a set of signature signals that correspond to a range of depths within a target. These signature signals can include multiple individual reference signals and be can modified to compensate for specific characteristics of the target. In the preferred embodiment the members of the set of signature signals are correlated with data sets by phase rotating individual reference signals to determine maximum and minimum correlation and thereby enabling determination of the scattering characteristic of the target at each depth. Also a pilot signal is monitored to dynamically determine the phase relationship between individual reference signals and thereby avail of phase sensitive detection techniques to enhance SNR at deeper regions where multiple individual reference signals exist.

Abstract: The invention provides for generating a set of signature signals that correspond to a range of depths within a target. These signature signals can include multiple individual reference signals and be can modified to compensate for specific characteristics of the target. In the preferred embodiment the members of the set of signature signals are correlated with data sets by phase rotating individual reference signals to determine maximum and minimum correlation and thereby enabling determination of the scattering characteristic of the target at each depth. Also a pilot signal is monitored to dynamically determine the phase relationship between individual reference signals and thereby avail of phase sensitive detection techniques to enhance SNR at deeper regions where multiple individual reference signals exist.

Abstract: The invention teaches a field of light based method and system suitable for non-invasive target analysis, including in vivo analysis. A embodiment of the system comprises a field of light imaging device; an illuminating module consisting of a plurality of light sources that emit light radiation centered on multiple wavelengths; a partially reflective minor positioned to reflect radiation to the target from the illumination module, and from the target to the field of light imaging device; a display; a processing and control module coordinating target position, and the synchronous output of the illumination module with image capture by the field of light imaging device; and an output and storage device.

Abstract: The invention provides a method and system for non-invasive analysis. In particular the inventive system relates optical techniques involving infra-red, visible or ultra violet radiation for imaging and analyzing surface and sub-surface structure of tissue and components of the eye. Embodiments of the invention further include Optical Coherence Tomography (OCT) techniques for sub-surface imaging and analysis, and incorporate instruments such as ophthalmoscopes, fundus cameras, for non-invasive imaging and analysis.

Abstract: The invention taught herein provides a method, device and system for modulating or switching electromagnetic radiation by controlling a state of the radiation, such as a polarization state. Radiation is directed at a reflective or transmissive structure, such that the radiation is incident on the structure. The structure includes a property that can be dynamically switched between two configurations, one of which is asymmetric and is configured to modify the polarization characteristic of the radiation. The dynamically configurable structure can be combined with polarization components to achieve modulation. Embodiments suitable for mode-locking a laser and for cavity dumping a mode-locked laser are also disclosed.

Abstract: The invention provides a method and system for non-invasive analysis. In particular the inventive system relates optical techniques involving infra-red, visible or ultra violet radiation for imaging and analyzing surface and sub-surface structure of tissue and components of the eye. Embodiments of the invention further include Optical Coherence Tomography (OCT) techniques for sub-surface imaging and analysis, and incorporate instruments such as ophthalmoscopes, fundus cameras, for non-invasive imaging and analysis.

Abstract: The invention teaches a field of light based method and system suitable for non-invasive target analysis, including in vivo analysis. A embodiment of the system comprises a field of light imaging device; an illuminating module consisting of a plurality of light sources that emit light radiation centered on multiple wavelengths; a partially reflective minor positioned to reflect radiation to the target from the illumination module, and from the target to the field of light imaging device; a display; a processing and control module coordinating target position, and the synchronous output of the illumination module with image capture by the field of light imaging device; and an output and storage device.

Abstract: The invention provides for generating a set of signature signals that correspond to a range of depths within a target. These signature signals can include multiple individual reference signals and be can modified to compensate for specific characteristics of the target. In the preferred embodiment the members of the set of signature signals are correlated with data sets by phase rotating individual reference signals to determine maximum and minimum correlation and thereby enabling determination of the scattering characteristic of the target at each depth. Also a pilot signal is monitored to dynamically determine the phase relationship between individual reference signals and thereby avail of phase sensitive detection techniques to enhance SNR at deeper regions where multiple individual reference signals exist.

Abstract: The invention provides a system and method for using OCT to determine hydration and blood flow variation adjusted glucose measurement in a target of interest. For some target, including a target of a living human, the invention provides for the measurement of tissue components, for determination of hydration level and blood flow variations of target, for non-invasive determination of glucose in target, and for hydration-adjusted and blood flow compensated glucose measurement in target. In one embodiment, both the tissue components and glucose level are measured by OCT, and tables or indexes of hydration are used to determine hydration adjustment. In alternate embodiments, the hydration index may be partially or fully “individualized,” created from data collected from monitoring an individual or groups of individuals with pre-selected characteristics (ex. same gender, weight, age, ethnicity, diabetes stage, species, etc.).