An optically-controlled switch and a method therefor are provided. The optically-controlled switch includes a printed circuit board (PCB) including upper and lower layers and a dielectric layer between the upper and lower layers, a plurality of vias electrically connected to the upper and lower layers and located in at least two rows, a shunt via electrically connected to the lower layer and separated from the upper layer by a dielectric gap, and a photoconductive semiconductor element (PSE) electrically connected to the upper layer and the shunt via, wherein the PSE includes a dielectric state and a conductor state, and wherein an electromagnetic wave provided to the optically-controlled switch propagates or is blocked through a waveguide formed between the at least two rows.

An electro-optically triggered power switch is disclosed utilizing a wide bandgap, high purity III-nitride semiconductor material such as BN, AlN, GaN, InN and their compounds. The device is electro-optically triggered using a laser diode operating at a wavelength of 10 to 50 nanometers off the material's bandgap, and at a power level of 10 to 100 times less than that required in a conventionally triggered device. The disclosed device may be configured as a high power RF MOSFET, IGBT, FET, or HEMT that can be electro-optically controlled using photons rather than an electrical signal. Electro-optic control lowers the power losses in the semiconductor device, decreases the turn-on time, and simplifies the drive signal requirements. It also allows the power devices to be operated from the millisecond to the sub-picosecond timeframe, thus allowing the power device to be operated at RF frequencies (i.e., kilohertz to terahertz range) and at high temperatures where the bandgap changes with temperature.

An encapsulation cover for an electronic package includes a frontal wall with a through-passage extending between faces. The frontal wall includes an optical element that allows light to pass through the through-passage. A cover body and a metal insert that is embedded in the cover body, with the cover body being overmolded over the metal insert, defines at least part of the frontal wall.

An infrared (IR) sensor and a method of detecting molecular species in a liquid. In one embodiment, the IR sensor includes: (1) an IR light source configured to emit IR light, (2) a sensing element configured to receive the IR light, the IR light generating an evanescent field about the sensing element as the IR light propagates therethrough, molecules in a subject liquid interacting with the evanescent field and affecting a characteristic of the IR light and (3) an IR light detector configured to receive the IR light from the sensing element and detect the characteristic.

An electronics assembly includes a first cooling chip made of a semiconductor material, and at least one subassembly mounted on the first cooling chip. The first cooling chip includes at least one metallization layer on a portion of a first surface of the first cooling chip, at least one inlet through a second surface of the first cooling chip, wherein the second surface is opposite to the first surface, at least one outlet through the second surface of the first cooling chip, and one or more micro-channels extending between and fluidly coupled to the at least one inlet and the at least one outlet. The at least one subassembly includes one or more photonic cores positioned to receive light from a light source, wherein the one or more photonic cores comprise a wide band gap semiconductor material.

The present disclosure relates to a method for preparing a conjugated polymer film, as well as a light-emitting diode, a display device, and a solar energy battery including the conjugated polymer film. A method for preparing a conjugated polymer film according to the present disclosure includes: preparing a fibrous conjugated polymer; and preparing a conjugated polymer film from the fibrous conjugated polymer. Since the fibrous conjugated polymer has a certain length and orientation, it has improved electron mobility in the dimensional direction thereof, and is capable of improving the carrier mobility of the conjugated polymer film.

An infrared (IR) sensor and a method of detecting molecular species in a liquid. In one embodiment, the method comprises i) generating IR light from an IR light source; ii) receiving in an optical fiber the IR light from the IR light source, wherein a selective ion-exchange (IX) medium is associated with the optical fiber and the IR light generates an evanescent field about the optical fiber as the IR light propagates therethrough, the selective IX medium configured to transport an ion species in a subject liquid about the optical fiber; and iii) receiving in an IR light detector the IR light from the optical fiber, wherein the ion species affects the evanescent field and thereby a characteristic of the IR light.

An optical numerical computation device relates light from a plurality of light sources to calculate an arithmetic solution. The optical numerical computation device includes input circuitry, pre-calculation circuitry, calculation circuitry, a light collection cavity, and a plurality of light computation components. The pre-calculation circuitry and calculation circuitry cause light sources to emit light representing the values of input operands, which is subsequently related within the light collection cavity. Sensors then generate resultant outputs at values indicative of the sensed light value. The respective wavelength of light emitted from or sensed by each light computation component may be associated with an operand arithmetic sign.

An infrared (IR) sensor and a method of detecting molecular species in a liquid. In one embodiment, the method comprises i) generating IR light from an IR light source; ii) receiving in an optical fiber the IR light from the IR light source, wherein a selective ion-exchange (IX) medium is associated with the optical fiber and the IR light generates an evanescent field about the optical fiber as the IR light propagates therethrough, the selective IX medium configured to transport an ion species in a subject liquid about the optical fiber; and iii) receiving in an IR light detector the IR light from the optical fiber, wherein the ion species affects the evanescent field and thereby a characteristic of the IR light.

An electronics assembly includes a first cooling chip made of a semiconductor material, and at least one subassembly mounted on the first cooling chip. The first cooling chip includes at least one metallization layer on a portion of a first surface of the first cooling chip, at least one inlet through a second surface of the first cooling chip, wherein the second surface is opposite to the first surface, at least one outlet through the second surface of the first cooling chip, and one or more micro-channels extending between and fluidly coupled to the at least one inlet and the at least one outlet. The at least one subassembly includes one or more photonic cores positioned to receive light from a light source, wherein the one or more photonic cores comprise a wide band gap semiconductor material.