A computer system that includes a plurality of processing elements for parallel computation utilizes a free-space optical network for communication between the processing elements. Such a network employs an optoelectronic switch that includes a binary H-type tree for routing signals to selected ones of an array of lasers. Hybrid repeaters are included in the optical paths to generate output optical beams colinear that are with incident input beams.

An optoelectronic component with an optoelectronic transducer device and an electrical circuit electrically connected to the transducer device mounted on a carrier substrate which is optically transparent for specific wavelengths. The transducer device is arranged on the front side of the carrier substrate, and light coupling takes place through the back side. The electrical circuit is formed as a circuit integrated into the carrier substrate or is formed on the carrier substrate using hybrid te...

A device for detecting the presence of an antigen including (1) a cell having antibodies which are expressed on the surface of the cell and are specific for the antigen to be detected, where binding of the antigen to the antibodies results in an increase in calcium concentration in the cytosol of the cell, the cell further having a emitter molecule which, in response to the increased calcium concentration in the cytosol, emits a photon; (2) a liquid medium for receiving the antigen and in which ...

The invention relates to an optoelectronic device (1) for detecting objects (2) in a monitoring range, one end of which comprises a transmitter (3) that emits transmitting light rays (8) and two receivers (4, 5) that receive light rays (10) and have respectively one first and second linear polarizing element (14, 15) installed in front, for which the polarization directions are such that they are turned relative to each other by an angle .alpha. in the range of 45.degree.<.alpha.<135.degre...

Opto-electronic module, whereby opto-electronic, active components are manufactured as epitaxially grown layer sequence on the upper side of a substrate, and whereby the waveguide layers present in these components are connected to one another and/or to external terminal surfaces for external connection by passive waveguides that are composed of a material that differs from all semiconductor constituents of the active components.

An optoelectronic fiber and methods for forming such a fiber are disclosed. The fiber generally includes an electrically conductive fiber core, a first semiconducting layer substantially surrounding the fiber core, and a second semiconducting layer substantially surrounding the first semiconducting layer. The first and second semiconducting layers are of complementary types, i.e., one is p-type and the other is n-type. The fiber may be made, e.g., by electrospinning a material to form a fiber co...

An optoelectronic package having passive optical components that are configured to reduce the amount of optical back reflection that reaches an optoelectronic device housed within the optoelectronic package. In one example, the optoelectronic package includes an optoelectronic device, a wave plate, and a linear polarizer. The optoelectronic device is configured to emit an optical signal along an optical path. The wave plate is positioned in the optical path of the optoelectronic device. The line...

Optoelectronic component, having a basic body or housing (2), at least one optoelectronic semiconductor chip (3) arranged in a recess of the basic body, and a potting composition (5) made of a transparent material, which potting composition embeds the at least one semiconductor chip in the recess, the transparent potting composition (5) being formed in diffusely scattering fashion and in particular containing diffuser particles (6) at which light impinging thereon is diffusely scattered.

Apparatus and methods for providing displays based upon the principle of photoluminescent quenching are described. The invention includes a method of displaying information using photoluminescence quenching, the method comprising providing an optoelectronic display comprising a photoluminescent material between a pair of electrodes, providing illumination for the photoluminescent material to cause the photoluminescent material to photoluminescence, and biasing the electrodes to at least partiall...

A device for detecting the presence of an antigen including (1) a cell having antibodies which are expressed on the surface of the cell and are specific for the antigen to be detected, where binding of the antigen to the antibodies results in an increase in calcium concentration in the cytosol of the cell, the cell further having a emitter molecule which, in response to the increased calcium concentration in the cytosol, emits a photon; (2) a liquid medium for receiving the antigen and in which ...