Abstract: An optical coupling structure includes a PQR hole emitter having a PQR hole, and an optical fiber whose one side is tapered into the PQR hole. An index-matching solution such as a photo-resist or a photo-resist diluted solution is injected into the PQR hole to adhere the optical fiber and the PQR hole.

Abstract: An optical coupling structure includes a PQR hole emitter having a PQR hole, and an optical fiber whose one side is tapered into the PQR hole. An index-matching solution such as a photo-resist or a photo-resist diluted solution is injected into the PQR hole to adhere the optical fiber and the PQR hole.

Abstract: A light-emitting device is capable of oscillating in a convex-whispering gallery mode. The lighting-emitting device includes a PIN-type semiconductor including a p-type distributed Bragg reflector, an active region and an n-type distributed Bragg reflector formed on a substrate by an epitaxial growth, wherein the PIN-type semiconductor having a hole with a predetermined diameter formed thereon, and an electrode connected to a region around the hole for applying a current to the hole. Further disclosed are a method for manufacturing the light-emitting device and an array of light-emitting devices.

Abstract: Disclosed herein is a device for rotating or translating a three-dimensional object using a 3×3 button array, in which an application program runs to rotate and to translate a predetermined three-dimensional object on a display screen. The device comprises a button-part including 9 buttons of a 3×3 array and having combinations of buttons on horizontal, vertical, and diagonal lines, corresponding to the direction of rotation or translation of a three-dimensional object on the three-dimensional axis of rotation or along the axis of translation; and a microcomputer for recognizing the depression combination of buttons, the order of the button depressed, and the key-depressing time and outputting a control signal so as to rotate or to translate a portion of or whole configuration of the three-dimensional object on the display screen.

Abstract: A light-emitting device is capable of oscillating in a convex-whispering gallery mode. The lighting-emitting device includes a PIN-type semiconductor including a p-type distributed Bragg reflector, an active region and an n-type distributed Bragg reflector formed on a substrate by an epitaxial growth, wherein the PIN-type semiconductor having a hole with a predetermined diameter formed thereon, and an electrode connected to a region around the hole for applying a current to the hole. Further disclosed are a method for manufacturing the light-emitting device and an array of light-emitting devices.