Abstract: A sorting flow cytometer receives a current alignment of a light beam, determines a difference between the current alignment of the light beam and a target alignment of the light beam, and calculates one or more voltage values based on the difference between the current alignment and the target alignment. The sorting flow cytometer uses the voltage values to adjust a position of at least one of a first alignment actuator extending in a first axial direction and a second alignment actuator extending in a axial second direction to reduce the difference between the current alignment of the light beam and the target alignment of the light beam.

Abstract: High numerical aperture collection optics for particle analyzers may include an ellipsoidal reflector or an ellipsoidal reflector in combination with a spherical reflector, and may efficiently collect light scattered or emitted by particles in a sample stream and then couple that collected light into a lower numerical aperture portion of the instrument's optical detection system, such as into an optical fiber for example. The reflectors may be integrated with a flow cell through which the sample stream passes, or may be separate components arranged around a flow cell or, in instruments not employing a flow cell, arranged around a sample stream in air. Refractive beam steering optics may allow multiple closely spaced excitation beams to be directed into the sample stream at low angles of incidence. The collection optics and refractive beam steering optics may be employed separately or in combination with each other.

Abstract: High numerical aperture collection optics for particle analyzers may include an ellipsoidal reflector or an ellipsoidal reflector in combination with a spherical reflector, and may efficiently collect light scattered or emitted by particles in a sample stream and then couple that collected light into a lower numerical aperture portion of the instrument's optical detection system, such as into an optical fiber for example. The reflectors may be integrated with a flow cell through which the sample stream passes, or may be separate components arranged around a flow cell or, in instruments not employing a flow cell, arranged around a sample stream in air. Refractive beam steering optics may allow multiple closely spaced excitation beams to be directed into the sample stream at low angles of incidence. The collection optics and refractive beam steering optics may be employed separately or in combination with each other.

Abstract: A control method of a mechanical articulated arm, wherein at least two tilt sensors are arranged in different positions of the articulated arm, comprising: calibrating zero positions of tilt sensors when articulated arm does not have elastic deformation, setting position of tail end of articulated arm as point P and point P? before and after elastic deformation of articulated arm, and selecting point R on the articulated arm; detecting angles of two different positions of the articulated arm with the tilt angles before and after the elastic deformation, obtaining the angle offset ?? of the articulated arm due to the elastic deformation, and calculating the length parameter La and the angle parameter ?a of the articulated arm after deformation based on the lengths of OR and RP?; and controlling the action of the articulated arm according to position parameters Xp? and Yp? (to the point P?) obtained according to length parameter La and angle parameter ?a.

Abstract: The present invention provides methods, software, and systems for assessing a burn injury.

Abstract: A method and system for analyzing noisy terahertz spectroscopy data transforms the measured time-dependent data into frequency space, for example, using a discrete Fourier transform, and then transforms the frequency spectrum into wavelet frequency space. The twice-transformed data is analyzed to identify spectroscopic features of the signal, for example, to identify a resonance frequency. The method may be used, for example, in a stand-off detector to identify particular chemicals in a target.

Abstract: The invention provides devices, systems, and methods for detecting an analyte vapor. Particularly, electronegative analyte vapors, such as those vapors evolving from explosive compounds, are typical analytes detected the devices. The devices operate using a resistivity change mechanism wherein a nanostructured chemiresistive material undergoes a resistivity change in the presence of an analyte vapor. A resistivity change indicates the presence of an analyte.

Abstract: Poling structures and methods utilizing an electrostatic field generated from a polar dielectric material, including pyroelectric and ferroelectric materials, to produce electro-optic activity in organic nonlinear optical materials.

Abstract: A control method of a mechanical articulated arm, wherein at least two tilt sensors are arranged in different positions of the articulated arm, comprising: calibrating zero positions of tilt sensors when articulated arm does not have elastic deformation, setting position of tail end of articulated arm as point P and point P? before and after elastic deformation of articulated arm, and selecting point R on the articulated arm; detecting angles of two different positions of the articulated arm with the tilt angles before and after the elastic deformation, obtaining the angle offset ?? of the articulated arm due to the elastic deformation, and calculating the length parameter La and the angle parameter ?a of the articulated arm after deformation based on the lengths of OR and RP?; and controlling the action of the articulated arm according to position parameters Xp? and Yp? (to the point P?) obtained according to length parameter La and angle parameter ?a.

Abstract: A method and system for analyzing noisy terahertz spectroscopy data transforms the measured time-dependent data into frequency space, for example, using a discrete Fourier transform, and then transforms the frequency spectrum into wavelet frequency space. The twice-transformed data is analyzed to identify spectroscopic features of the signal, for example, to identify a resonance frequency. The method may be used, for example, in a stand-off detector to identify particular chemicals in a target.

Abstract: The invention provides devices, systems, and methods for detecting an analyte vapor. Particularly, electronegative analyte vapors, such as those vapors evolving from explosive compounds, are typical analytes detected the devices. The devices operate using a resistivity change mechanism wherein a nanostructured chemiresistive material undergoes a resistivity change in the presence of an analyte vapor. A resistivity change indicates the presence of an analyte.

Abstract: Poling structures and methods utilizing an electrostatic field generated from a polar dielectric material, including pyroelectric and ferroelectric materials, to produce electro-optic activity in organic nonlinear optical materials.

Abstract: A device package and method of fabrication where the device is bonded to the package housing using a bonding medium. The medium includes a solid compliant material, preferably with pressure sensitive adhesive layers formed on the major surfaces. The bonding medium results in reduced stresses on the device, and is especially suitable for photo-elastic devices such as lithium niobate optical devices.

Abstract: The invention includes a multi-material structure comprising at least two components through which light is propagated. At least two structure components are of different materials and are joined to one another at an end surface of each either directly or indirectly. The end surfaces are at angles other than normal to the direction of light propagation. The multi-material structure has a polarization dependent loss less than if the components had end surfaces normal to the direction of light propagation. Embodiments of the invention are particularly applicable to a waveguide substrate/fiber capillary interface. Also included is a method of reducing polarization dependent loss between joined components through which light is propagated.