Abstract:
The disclosed fluorophosphate glasses for an active device include: a metaphosphate composition including Al(PO3)3; a fluoride composition including BaF2 and SrF2; and a dopant composed of ErF3 and YbF3, and have thermal and mechanical properties to be able to be used as a glass base material for an active device (e.g., optical fiber laser), have a high emission cross-section characteristic, have a reinforced upconversion and downconversion emission characteristic, and have high sensitivity S in a cryogenic environment.
Abstract:
Provided are a light emitting device having a nitride quantum dot and a method of manufacturing the same. The light emitting device may include: a substrate; a nitride-based buffer layer arranged on the substrate; a plurality of nanorod layers arranged on the nitride-based buffer layer in a vertical direction and spaced apart from each other; a nitride quantum dot arranged on each of the plurality of nanorod layers; and a top contact layer covering the plurality of nanorod layers and the nitride quantum dots. A pyramid-shaped material layer may be further included between each of the plurality of nanorod layers and each of the nitride quantum dots. One or the plurality of nitride quantum dots may be arranged on each of the nanorod layers.
Abstract:
An optical transmission and reception connector system includes a cable that has a plug section formed at both ends thereof so as to relay and transmit light and an interfacing module that is mounted on an electronic apparatus and that includes an insertion space into which the plug section is detachably inserted. The cable is provided with a first relay optical path and a second relay optical path. The interfacing module includes a receptacle unit in which a first internal optical terminal and a second internal optical terminal for transmitting and receiving light to and from the cable are separated from each other, an optical transmitter unit, an optical receiver unit, and a main optical transmission unit that includes a first main optical path formed between the optical transmitter unit and the first internal optical terminal so as to transmit light output from the optical transmitter unit through the first internal optical terminal and a second main optical path formed between the second internal optical terminal and the optical receiver unit so as to be separated from the first main optical path and to transmit light received from the second internal optical terminal to the optical receiver unit The plug section of the cable is formed such that an upper part and a lower part are symmetric with respect to the center thereof without depending on the insertion direction thereof, and the cable or the receptacle unit is formed to divide or switch an optical path so as to enable transmission of light by the optical transmitter unit and reception of light by the optical receiver unit.
Abstract:
Devices having nitride quantum dots and methods of manufacturing the same are provided. The device includes a nitride group material substrate, a plurality of nanorods that are formed on the nitride group material layer and are separated from each other, and a nitride quantum dot on each of the nanorods. A pyramid-shaped layer may be further formed between each of the nanorods and the nitride quantum dot. The nanorods and the nitride quantum dot are covered by an upper contact layer. A plurality of nitride quantum dots may be formed on each of the nanorods and the respective nitride quantum dots may have different sizes.