Abstract:
A scattering spectroscopy nanosensor includes a nanoscale-patterned sensing substrate to produce an optical scattering response signal indicative of a presence of an analyte when interrogated by an optical stimulus. The scattering spectroscopy nanosensor further includes a protective covering to cover and protect the nanoscale-patterned sensing substrate. The protective covering is to be selectably removed by exposure to an optical beam incident on the protective covering. The protective covering is to prevent the analyte from interacting with the nanoscale-patterned sensing substrate prior to being removed.
Abstract:
A display element comprises a cell containing a fluid including a plurality of wells at the bottom of the cell. A luminescent material is within the cell for modulating light incident from the top of the cell and for returning luminescent light; and a dispersion of particles is contained within the fluid. The dispersion of particles is movable between a first state in which the particles are substantially contained within the plurality of wells and a second state in which the particles are distributed between the top and bottom of the cell, to control the intensity of luminescent light returned by the display element.
Abstract:
A display includes at least two stacked waveguides (110) and (120). A first waveguide (110) contains first luminophores that fluoresce to produce light of a first color. A second waveguide (120) overlying the first waveguide and contains second luminophores that fluoresce to produce light of a second color. A light collection structure (180) transmits light from a surrounding environment transversely through the first and second waveguides (110, 120) and optical vias (172, 174) provide optical paths out of the display for light respectively from the first optical waveguide (110) and the second optical waveguide (120).
Abstract:
A reflective color pixel has a top surface for receiving ambient light for front lighting, a plurality of sub-pixels including a first sub-pixel, and a waveguide disposed underneath the sub-pixels for transmitting light for backlighting to the sub-pixels. The first sub-pixel includes a first luminescent material configured to absorb either the ambient light or the light for backlighting and generate light of a first color.
Abstract:
Various reflective display pixels are provided. In one embodiment, among others, a reflective display pixel for modulating the return of incident visible light is provided that includes one or more stacked cells. Each cell includes a fluid containing a light absorbing medium capable of absorbing incident light in at least one specified wavelength band for that cell and a light returning medium capable of selectively returning at least a portion of the light within the specified wavelength band for that cell. In other embodiments, each cell includes a fluid containing a light absorbing medium capable of absorbing incident light in at least one specified wavelength band for that cell and a light returning medium capable of selectively returning at least a portion of visible light outside the specified wavelength band for that cell.
Abstract:
An electrophoretic cell and methods of switching an electrophoretic cell and moving charged species in an electrophoretic cell employ differential electrophoretic mobilities and a time-varying electric field. The methods include providing first and second charged species that are oppositely charged and have different mobilities. The method of switching further includes inducing a net motion of both of the charged species using the time-varying applied electric field. The induced net motion results in either the first charged species being moved toward the electrode and the second charged species remaining essentially motionless or both of the charged species being moved toward the same electrode. The electrophoretic cell includes the first and second charged species with opposite charge and different mobilities, and further includes the time-varying applied electric field that provides the net motion of the charged species.
Abstract:
A method and apparatus for reading data bits stored on a storage medium is provided. The apparatus comprises a data probe structure including a data probe and at least one switch attached to the data probe, a controllable voltage source configured to supply voltage to the data probe structure, and a charge amplification structure configured to receive charge from the data probe structure. The controllable voltage source applies a first voltage to the data probe structure and subsequently applies a second voltage to the data probe structure, thereby causing a sense capacitance to charge and then discharge into the charge amplification structure. Certain embodiments of the design may employ dummy cells, diodes in place of switches, and may use a single line to control voltage switching. A lock-in amplifier approach is also presented.
Abstract:
A media storage device and method for fabricating said device is provided. The device comprises a data layer capable of storing and erasing data via application of an energy beam, such as a near field optical non diffraction limited beam or electron beam. A separate capping layer is deposited on the data layer. The separate capping layer is relatively transparent to the energy beam and may be formed from various materials, including but not limited to an epitaxial material, a conducting material, and a robust high melting point material, such as Molybdenum.
Abstract:
Methods, systems, and products are disclosed for detecting an intrusion to a communications network. One embodiment describes a peripheral card having a communications portion and a processor. The communications portion has only a capability for receiving data packets via the communications network. The communications portion lacks capability of transmitting the data packets via the communications network. The processor manages the communications portion, and the communications portion reduces intrusion of the communications network.
Abstract:
A readout arrangement has a base which has a flexible member supporting a probe on a free end thereof so that the probe is movable with respect to the base; a medium in which a superficial data indicative topographical feature can be formed, the superficial data indicative topographical feature being configured to be contacted by the probe, the medium and the base being arranged to be movable relative to one another; and a semiconductor element disposed with one of the base and medium, the semiconductor element being configured to be responsive to an electric field generated in response to interaction between the probe and the superficial data indicative topographical feature.