Abstract: Disclosed is an antibody for cancer treatment conjugated with a tumor environment-sensitive cleavable polyethylene glycol, wherein the use of the antibody for cancer treatment can suppress side effects of the antibody while maintaining therapeutic effects thereof.

Abstract: Disclosed is a humidity sensor including: a conductive material in which electric charges are charged; a charger which charges the electric charges in the conductive material; and a measurer which measures a change amount of the electric charges charged in the conductive material.

Abstract: Disclosed is a humidity sensor including: a conductive material in which electric charges are charged; a charger which charges the electric charges in the conductive material; and a measurer which measures a change amount of the electric charges charged in the conductive material.

Abstract: A holographic light guide plate has a transparent substrate and a plurality of diffraction patterns formed thereon. The diffraction patterns are arranged on one of a top surface and a bottom surface of the transparent substrate. The diffraction patterns diffract light incident on the transparent substrate. Each of the diffraction patterns has a continuously varying interval.

Abstract: The present invention provides a long-range surface plasmon optical waveguide sensor which has a reduced loss of an electromagnetic wave, an increased sensitivity and limitation of detection and a high analysis speed, and enables fabrication of a sensor of various sizes such as a small-sized or lightweight system, etc.

Abstract: Provided is an optical waveguide device including: a core having a stacked structure of at least three layers in which first thin films having a finite width and thickness and formed of a material having a relatively high electric conductivity and a second thin film having the same width as the first thin films and formed of a material having a lower conductivity than the material forming the first thin films are stacked in sequence, the first thin films being disposed in a first layer and an uppermost layer and adjacent to each other for interaction of surface plasmons; and a clad disposed around the core and formed of a material having a lower conductivity than the material forming the first thin films and a higher refractive index than the material forming the second thin film.

Abstract: The present invention provides a long-range surface plasmon optical waveguide sensor which has a reduced loss of an electromagnetic wave, an increased sensitivity and limitation of detection and a high analysis speed, and enables fabrication of a sensor of various sizes such as a small-sized or lightweight system, etc.

Abstract: The present invention provides a mobile camera optical lens system which assures a wide view angle by dividing a view angle into two or more view angles, and simultaneously achieves the thinness of the mobile camera optical lens system by providing separate off-axis lens systems respectively corresponding to the split view angles.

Abstract: A surface emitting device and a display apparatus including the same. The surface emitting device includes: a light source; and a light guide plate having a light exit surface on which holographic patterns are formed, and guiding light emitted by the light source such that the guided light is emitted from the light exit surface, wherein the holographic patterns are arranged so that light incident on the light guide plate without passing through any side surface of the light guide plate can be incident on the holographic patterns at an azimuth greater than 45° at which light emitting efficiency is low and light incident on the light guide plate and reflected by any side surface of the light guide plate can be incident on the holographic patterns at an azimuth at which light emitting efficiency is high.

Abstract: A surface emitting device and a display apparatus including the same. The surface emitting device includes: a light source; and a light guide plate having a light exit surface on which holographic patterns are formed, and guiding light emitted by the light source such that the guided light is emitted from the light exit surface, wherein the holographic patterns are arranged so that light incident on the light guide plate without passing through any side surface of the light guide plate can be incident on the holographic patterns at an azimuth greater than 45° at which light emitting efficiency is low and light incident on the light guide plate and reflected by any side surface of the light guide plate can be incident on the holographic patterns at an azimuth at which light emitting efficiency is high.

Abstract: Provided is an optical waveguide device including: a core having a stacked structure of at least three layers in which first thin films having a finite width and thickness and formed of a material having a relatively high electric conductivity and a second thin film having the same width as the first thin films and formed of a material having a lower conductivity than the material forming the first thin films are stacked in sequence, the first thin films being disposed in a first layer and an uppermost layer and adjacent to each other for interaction of surface plasmons; and a clad disposed around the core and formed of a material having a lower conductivity than the material forming the first thin films and a higher refractive index than the material forming the second thin film.

Abstract: A holographic light guide plate has a transparent substrate and a plurality of diffraction patterns formed thereon. The diffraction patterns are arranged on one of a top surface and a bottom surface of the transparent substrate. The diffraction patterns diffract light incident on the transparent substrate. Each of the diffraction patterns has a continuously varying interval.

Abstract: A semiconductor magneto-optical integrated optical isolator is realized with a Mach-Zehnder integrated optical isolator in which a cladding and a guiding layer of light waveguide are composed of magnetic material. Here, it uses nonreciprocal phase shift created when light propagation direction is changed. The fundamental element deriving this nonreciprocal phase shift is the Faraday rotation of magnetic material. Therefore, it is essential to have large Faraday rotation in order to fabricate a short length integrated optical isolator. However, since magnetic material of bulk state does not have large Faraday rotation, there need the length of several mm units for fabricating an isolator. The invention is to realize an integrated optical isolator using magneto-optical crystal in which magneto-optical material and dielectric substance have periodic structure.

Abstract: A wearable display system having a display panel to output a signal processed in a predetermined way. The system includes at least one waveguide to guide propagation of at least one signal output from at least one display panel, a plurality of gratings to diffract the at least one signal propagating through the at least one waveguide, and at least one magnifying lens to magnify the at least one signal diffracted by the gratings. A lightweight and compact wearable display system is realized by minimizing the number of optical components, and the complexity and cost of manufacturing the display system is reduced. In addition, the display system is produced on a large scale by incorporating a waveguide, gratings and an eyepiece into one single body, and further, chromatic aberration is removed by conjugate gratings.

Abstract: Disclosed is a servo control method in a disk type holographic data storage apparatus such as a CD-ROM or a DVD-ROM, which has free insertion and extraction characteristics, and the holographic data storage apparatus using the same. Data pixels can be precisely read during the reproduction of the stored holographic data. When a holographic data storage medium having the stored data is rotated, the position of the reproduced holographic data may be deviated from the pixel position in a detector due to errors. A servo control method is conducted to correct the position of the data pixel in the detector. A flat glass is positioned in a 4-f lens system and an angle of inclination of the flat glass is adjusted. The angle of the reference beam is changed while the position of the reference beam is maintained. The light pick-up device may be downsized without using an expensive device such as an acoustic-optic modulator or galvano-mirror.

Abstract: A wearable display system having a display panel to output a signal processed in a predetermined way. The system includes at least one waveguide to guide propagation of at least one signal output from at least one display panel, a plurality of gratings to diffract the at least one signal propagating through the at least one waveguide, and at least one magnifying lens to magnify the at least one signal diffracted by the gratings. A lightweight and compact wearable display system is realized by minimizing the number of optical components, and the complexity and cost of manufacturing the display system is reduced. In addition, the display system is produced on a large scale by incorporating a waveguide, gratings and an eyepiece into one single body, and further, chromatic aberration is removed by conjugate gratings.

Abstract: A multistage optical packet switching apparatus with self electro-optic-effect device is disclosed. The apparatus is formed with multistage structure using a plurality of symmetrical self electro-optic-effect devices, self-routing being performed by the control for a header part of optical packets after self-duplication and amplification for the input optical signal. The optical packet switching apparatus using a plurality of symmetrical self electro-optic-effect devices includes a front stage having first and second self electro-optic-effect devices interconnected and a back stage having third and fourth self electro-optic-effect devices interconnected, the 1.quadrature. multistage structure comprising the unit switching modules interconnected each comprising the front and the back stages, the self-duplication and amplification being performed in the front stage and the switching being performed in the back stage. The use of the apparatus is an optical exchange.

Abstract: A structure of optical grating slab waveguide including a light waveguiding layer with linear refractive index disposed on another waveguiding layer having a nonlinear refractive index. The refractive index of nonlinear waveguiding material is a function of intensity of optical power incident therein. The structure of this invention provides an optical waveguide having improved optically coupling coefficient. A optical grating structures formed with a slab waveguide of this invention may be used as a wavelength selective coupling device of bidirectional optical coupler that is particularly useful as demultiplexer or multiplexer.

Abstract: The present invention provides to a novel grating-assisted directional coupler which is capable of appending a nonlinear thin film to a conventional linear grating-assisted directional coupler, to thereby significantly improve coupling efficiency and hence design a structure having optical multistable characteristics, which comprises; a thin film nonlinear optical waveguide with third-order nonlinearity, which having a first thickness; a first linear optical waveguide formed on the thin film nonlinear optical waveguide, which having a second thickness, wherein a linear refractive index of the first linear optical waveguide is more than that of the thin film nonlinear optical waveguide; an optical waveguide grating patterned in equi-distanced on top surface of the nonlinear optical waveguide; and a second optical waveguide formed at a portion which is displaced from top surface of the first linear optical waveguide by a predetermined distance.

Abstract: A structure for a nonlinear grating coupler which is capable of providing a structure that a tapered nonlinear thin film and a linear waveguide grating structure are combined and a nonlinear grating coupler that a stepped nonlinear thin film and a linear optical waveguide grating structure are combined. The structure includes a tapered nonlinear thin film having a third-order nonlinearity, a linear optical waveguide having a refractive index greater than a linear refractive index of a nonlinear thin film formed on the tapered nonlinear thin film, and a grating structure formed on the linear optical waveguide.