Abstract:
Methods of rapid distinction between growing cells and debris, which determine a time-lapse movie of specimen images, track features of each entity, and categorize each entity as growing cells or debris.
Abstract:
A method and apparatus for irradiating a scattering medium with increased resolution. The method includes transmitting EM radiation from an Electromagnetic (EM) radiation source to a target inside a scattering medium, wherein the target encodes the EM radiation with a variance structure to form encoded EM radiation; measuring, in a detector, transmitted EM radiation comprising at least a portion of the encoded EM radiation transmitted through and exiting the scattering medium; decoding the transmitted EM radiation, comprising EM fields, in a computer, comprising selecting one or more of the EM fields having the variance structure; and irradiating the scattering medium with time reversed EM radiation from a spatial light modulator (SLM), the time reversed EM radiation generated from time reversing the EM fields having the variance structure, thereby forming a focus of the time reversed EM radiation in the scattering medium with the increased resolution.
Abstract:
A device and method for performing fluorescence imaging with digitally time reversed ultrasound encoded light, using a source of ultrasound waves, a coherent light source, a digital optical phase conjugation (DOPC) device comprising a camera and a spatial light modulator (SLM), a detector of fluorescence, and one or more computers, to obtain an output that at least approximates an interaction between a complete time reversed field, of all of the encoded light's fields, and the scattering medium.
Abstract:
Spatial frequency swept interference (SFSI) illumination and imaging methods and devices that interfere two collimated coherent beams to generate an interference pattern of a plurality of illuminating sheets with sweeping spatial frequency.
Abstract:
Spatial frequency swept interference (SFSI) illumination and imaging methods and devices that interfere two collimated coherent beams to generate an interference pattern of a plurality of illuminating sheets with sweeping spatial frequency.
Abstract:
A method for irradiating a scattering medium, including irradiating a scattering medium with radiation from a laser, to form scattered radiation having a scattered field; measuring a difference in the scattered field caused by motion of a moving target in or behind the scattering medium; forming a phase conjugate of the difference to form a phase conjugate field; and irradiating the scattering medium with the phase conjugate field formed using one or more radiation modulating elements. Thus we present that movement of objects can be used as a novel guide star in Digital Optical Phase Conjugation (DOPC). By time reversal of difference of scattering fields of a moving target, light can be focused through scattering media.
Abstract:
A device, including one or more Communication Physical Unclonable Function (CPUF) and key storage devices, the CPUF devices each including: a coherent Electromagnetic (EM) radiation source; a spatial light modulator (SLM) connected to the coherent EM radiation source; a volumetric scattering medium connected to the SLM; a detector connected to the volumetric scattering medium; and one or more processors or circuits connected to the detector and one or more processors or circuits connected to the SLM. A communication protocol is also provided.
Abstract:
Methods of rapid distinction between growing cells and debris, which determine a time-lapse movie of specimen images, track features of each entity, and categorize each entity as growing cells or debris.
Abstract:
A method and apparatus for irradiating a scattering medium with increased resolution. The method includes transmitting EM radiation from an Electromagnetic (EM) radiation source to a target inside a scattering medium, wherein the target encodes the EM radiation with a variance structure to form encoded EM radiation; measuring, in a detector, transmitted EM radiation comprising at least a portion of the encoded EM radiation transmitted through and exiting the scattering medium; decoding the transmitted EM radiation, comprising EM fields, in a computer, comprising selecting one or more of the EM fields having the variance structure; and irradiating the scattering medium with time reversed EM radiation from a spatial light modulator (SLM), the time reversed EM radiation generated from time reversing the EM fields having the variance structure, thereby forming a focus of the time reversed EM radiation in the scattering medium with the increased resolution.