Abstract: Provided is an optical element rotation type Mueller-matrix ellipsometer for solving a problem of measurement accuracy and measurement precision occurring due to residual polarization of a light source, polarization dependence of a photo-detector, measurement values of Fourier coefficients of a high order term in dual optical element rotation type Mueller-matrix ellipsometers according to the related art capable of measuring some or all of components of a Mueller-matrix for any sample.

Abstract: The present invention relates to an electron gun for facilitating position adjustment, and an electron microscope including the same, the electron gun improving a vacuum structure so as to easily move a filament block or an electron tip of an electron gun without having bellows for maintaining a vacuum when the center axis of the filament block or the electron tip of the electron gun is mechanically misaligned with the center axis of a anode and a focusing lens.

Abstract: The present invention relates to a method of fabricating a black phosphorus thin film and a black phosphorus thin film thereof and, more particularly, to a method of fabricating a black phosphorus ultrathin film by forming the black phosphorous ultrathin film in a chamber by active oxygen and removing accompanying black phosphorus oxide film water. The black phosphorus ultrathin film has a surface that does not substantially have defects and is uniform in a large area, and has a surface roughness property of 1 nm or less, to represent a high application property to an optoelectronic device and a field effect transistor.

Abstract: Provided is a photolithography method, including: a) forming a photoresist layer satisfying D=m*(?/2n) (D is a thickness of the photoresist layer, n is a refractive index of the photoresist, ? is a wavelength of irradiated light at the time of exposure, and m is a natural number of 1 or more) on a substrate; and b) manufacturing a photoresist pattern having a ring shape by exposing the photoresist layer and developing the exposed photoresist layer using a photo mask including a transparent substrate and a plate-type metal dot contacting a light emitting surface of the transparent substrate.

Abstract: The present invention relates to a method for evaluating a SERS sensor substrate, comprising the steps of: a) measuring, through a dark-field microscope, the color of nanoparticles positioned on the SERS sensor substrate; b) converting the measured color into a distance between the nanoparticles; c) acquiring the Raman signal intensity of the SERS sensor substrate; d) acquiring the standard Raman signal intensity of a standard SERS sensor substrate including the nanoparticles having the distance that is the same as the converted distance; and e) comparing the Raman signal intensity and the standard Raman signal intensity.

Abstract: The present invention relates to a shield apparatus and a shield method for measuring a subtle magnetic field. More specifically, the present invention relates to a shield apparatus having a precise magnetic sensor therein, for shielding an external magnetic field in a subtle magnetic field measurement apparatus including a magnetic field generation apparatus for exciting a sample, the shield apparatus for measuring a subtle magnetic field, including: a shield wall provided with a high-conductivity metal layer of high conductivity being partitioned into a plurality of segments and having a high-frequency shield property and a closed high-permeability soft magnetic layer spaced apart from the high-conductivity metal layer by a predetermined distance, so as to seal a measurement space.

Abstract: Provided are a method of manufacturing a quantum-dot photoactive-layer including: alternately depositing an amorphous silicon compound layer and a silicon-rich compound layer containing conductive impurities and an excess of silicon based on a stoichiometric ratio on a silicon substrate to form a composite multi-layer; and heat treating the composite multi-layer to form a plurality of silicon quantum-dots in a matrix corresponding to a silicon compound, wherein an amorphous silicon layer containing the conductive impurities is formed at least one time instead of the silicon-rich compound layer, and a quantum-dot photoactive-layer manufactured using the method as described above.

Abstract: The present invention relates to an electron gun for facilitating position adjustment, and an electron microscope including the same, the electron gun improving a vacuum structure so as to easily move a filament block or an electron tip of an electron gun without having bellows for maintaining a vacuum when the center axis of the filament block or the electron tip of the electron gun is mechanically misaligned with the center axis of a anode and a focusing lens.

Abstract: Provided are ultra-low-field nuclear-magnetic-resonance myocardial electrical activity detection method and an ultra-low-field nuclear-magnetic-resonance device. The ultra-low-field nuclear-magnetic-resonance device includes magnetic shielding room; a high-sensitivity magnetic field sensor disposed adjacent to a measurement target disposed inside the magnetic shielding room; and a bias magnetic field generating coil for providing an external measurement bias magnetic field, corresponding to a proton magnetic resonance frequency (nuclear magnetic resonance frequency) corresponding to a frequency of periodic myocardial activity of a lesion desired to be measured, to the measurement target. The high-sensitivity magnetic field sensor measures a magnetic resonance signal generated from the measurement target.

Abstract: Sample loading device and electrostatic levitation apparatus. The electrostatic levitation apparatus includes a sample storage part including a rod-shaped sample standby part having an external diameter of a first diameter and a rod-shaped sample loading part having an external diameter of a second diameter and a sample cover part covering the sample standby part. The sample storage part has a loading bar inserting hole formed in its center. The loading bar inserting hole is formed through the sample standby part and is formed successively through a portion of the sample loading part. The sample standby part has sample storage vertical through-holes. The sample loading part has a single sample transfer vertical through-hole. The sample transfer vertical through-hole is formed on a surface where the sample storage vertical through-hole is viewed, penetrates the sample loading part, and is connected to the loading bar inserting hole.

Abstract: A method of controlling a magnetization state using an imprinting technique may be provided. The method may include moving first and second magnetic structures, which have different magnetization states, toward each other and changing a magnetization state of the first or second magnetic structure, when a distance between the first and second magnetic structures is reduced. A magnetic field, which is produced by a magnetization state of one of the first and second magnetic structures, may be used to align a magnetization state of the other, when the magnetization state of the first or second magnetic structure is changed.

Abstract: According to one embodiment of the present invention, there is provided a photon generating apparatus including: a light source configured to emit light; an optical medium configured to generate a pair of photons from the light; a detector configured to detect one photon from the pair of photons and output a detection time of the photon; a buffer including an optical line and an optical switch disposed on an optical path of the photon, which is one photon except for the photon detected by the detector, of the pair of photons; and a processor configured to output a driving signal which controls the optical switch so that a delay occurs at the optical path using the detection time of the photon detected by the detector.

Abstract: Provided is a two-dimensional liquid chromatography system, and more particularly, a two-dimensional liquid chromatography system capable of performing both independent one-dimensional separation through a reversed-phase or normal-phase chromatography method and two-dimensional separation for removing a matrix effect in a single system.

Abstract: A vacuum sample chamber for a particle and optical device includes on one surface thereof, an aperture through which a particle beam to be focused along an optical axis of particles such as electrons, ions and neutral particles is incident; and on the opposite surface thereof, a detachable sample holder through which light penetrates, thereby enabling a sample to be observed and analyzed by means of the particle beam and light. A sample chamber is capable of reducing observation time by maintaining a vacuum therein even when a sample is put into or taken out from a sample chamber of an electron microscope or focused ion beam observation equipment, and capable of obtaining an optical image on the outside thereof without inserting a light source or an optical barrel into the sample chamber. A light-electron fusion microscope comprising the sample chamber.

Abstract: Provided is an apparatus for quantitatively analyzing one or more gas components contained in a gas sample. More particularly, an apparatus for quantitatively analyzing gas components with an automatic feed control function of a gas, includes a multi-position valve, a pump, and a control part controlling the multi-position valve and the pump, such that the apparatus for quantitatively analyzing gas components may allow a professional worker performing analysis to secure an efficient research time while ensuring accuracy at the level equivalent to analysis results by a highly skilled professional worker regardless of proficiency of a newly employed person being in charge of quantitative analysis of the gas components of the gas sample in a sample bag.

Abstract: Provided is a method of preparing a thin film structure having anisotropic, transparent, electroconductive, flexible properties. The method of preparing a thin film structure includes providing a growth substrate; growing silver nanolines on the growth substrate by using a lightning-rod effect; molding the silver nanolines by using a polymer; and separating the silver nanolines molded by the polymer from the growth substrate to form a freestanding anisotropic, transparent, electroconductive, and flexible thin film.

Abstract: The present disclosure relates to a force sensor including a first substrate, a first electrode installed in a pattern on an upper surface of the first substrate, a second substrate disposed above and spaced apart from the first substrate, a second electrode installed in a pattern on a lower surface of the second substrate, facing the first electrode, and a dielectric interposed between the first substrate and the second substrate, wherein the dielectric includes a first dielectric surrounding an outside of the second electrode, and a pressure rib connecting the first dielectric to the first electrode, and a method for preparing the same, and shows a remarkably superior effect to related art, in terms of capacitance, interactivity and durability.

Abstract: The present invention relates to a charged particle beam apparatus enabling a selection of a charged particle beam in a specified energy range by symmetrically arranging cylindrical electrostatic lenses deflecting a path of the charged particle beam and disposing an energy selection aperture between the cylindrical electrostatic lenses. Since an integral structure in which a central electrode and a plurality of electrodes that are arranged at a front portion and a rear portion in relation to the central electrode of a monochromator are fixed to each other through insulator, is applied, a mechanism for adjusting an offset with respect to an optical axis is simplified as compared to the case of separately providing the lenses at the front portion and the rear portion, respectively, and a secondary aberration is canceled in an exit plane due to symmetry of an optical system.

Abstract: An ultraviolet index measuring method and apparatus includes preparing a first photosensor having spectral response only in a first section of a wavelength between 250 nm and 298 nm, a second photosensor having spectral response only in a second section of a wavelength between 298 nm and 328 nm, and a third photosensor having spectral response only in a third section of a wavelength between 328 nm and 400 nm. An output signal of the first photosensor, an output signal of the second photosensor, and an output signal of the third photosensor are calibrated using spectral irradiance of reference solar light. First photocurrent of the first photosensor, second photocurrent of the second photosensor, and third photocurrent of the third photosensor are measured under a measurement environment. An ultraviolet index is calculated using the first photocurrent, the second photocurrent, and the third photocurrent under the measurement environment.

Abstract: The present invention relates to a method for preparing a two-dimensional transition metal dichalcogenide and, more particularly, to a method for preparing a highly uniform two-dimensional transition metal dichalcogenide thin film. More specifically, the present invention is directed to a preparation method for a highly uniform two-dimensional transition metal dichalcogenide thin film at low temperature of 500° C. or below.