Abstract:
PURPOSE: An optical device using a resonant optical waveguide and an operation method thereof are provided to improve a device response property by reducing an absorption loss. CONSTITUTION: An optical device includes an optical delivering part and an optical waveguide. The optical delivering part(1) propagates a signal beam(4). The optical waveguide is optically connected to the optical delivering part, and receives the signal beam propagated from the optical delivering part with a waveguide mode angle. In the optical waveguide, a pump beam is received to the same point as the point in which the signal beam is received. A wavelength of the signal beam and a wavelength of the pump beam are different. The waveguide mode angle of the optical waveguide(3) is determined by the pump beam(7).
Abstract:
A nanometallic composite coating layer and formation method thereof are provided to obtain a surface coating layer having excellent uniformity and reproducibility of color. A nanometallic composite coating layer has nanometallic particle inside of matrix(3). The coating layer expresses color through the surface Plasmon resonance by the nanometallic particle(2). The nanometallic particle dispersed in the nanometallic composite has the size of 2 to 100nm. The matrix is made of a material selected from an organic material, inorganic material and organic-inorganic mixture or compound.
Abstract:
PURPOSE: A wavelength selective type non-linear optical material and an optical element are provided to control an operation wavelength in real time by changing an external supply bias voltage. CONSTITUTION: A complex material having a tertiary non-linear optical characteristic includes a ferroelectric matrix(1) and micro metal particles(2) with 0.5nm to 50nm which are dispersed in the ferroelectric matrix(1). Two electrodes(3) horizontal each other are combined with the complex material by one body to be vertical with an electric field direction of an operation beam inputted to the complex material.
Abstract:
감쇠전반사(attenuated total reflection; ATR)형도파로모드공진센서는, 시료와접촉하도록구성되며나노결정질다이아몬드(nanocrystalline diamond; NCD)로이루어지는도파로층을포함하여구성될수 있다. ATR형도파로모드공진센서에입사된입사광에의해도파로층에정상파가생성되는입사광의입사각도를측정할수 있다. NCD로이루어진도파로는, 탄화수소를포함하는원료기체를사용한열 필라멘트화학기상증착(Hot Filament Chemical Vapor Deposition) 공정에의하여형성될수 있다. 이때, 기판의온도, 필라멘트와기판사이의거리및 원료기체에서탄화수소의비율중 하나이상을조절함으로써 NCD의결정립크기를제어할수 있다.