Abstract: Disclosed is a phase shift measuring device, which includes a dual mode laser including a first beat light source generating a first beating signal and a second beat light source generating a second beating signal, and that outputs a dual mode signal including the first beating signal and the second beating signal, a first splitter that receives the dual mode signal to generate a first branch signal and a second branch signal, the first branch signal and the second branch signal being including the branched first beating signal and the branched second beating signal, respectively, a phase control unit that receives the first branch signal and to generate a combined signal, a transmitting end that receives the combined signal from the phase control unit and generates a transmission signal based on the combined signal, and a receiving end.

Abstract: Provided herein are methods of diagnosing and treating a skeletal disease in a subject. The method includes (i) identifying the presence of osteoclast-enhancing cells (OECs) in the subject; (ii) quantifying the number of circulating OECs in a sample from the subject; and (iii) diagnosing a skeletal disease in the subject when an increase in OECs is detected as compared to a control.

Abstract: The inventive concept relates to an apparatus for inspecting shoes and a method for inspecting shoes, and the apparatus includes an inspection unit configured to accommodate an inspection subject, a transmission unit configured to emit electromagnetic waves toward the inspection subject accommodated in the inspection unit, a reception unit configured to receive the electromagnetic wave reflected from the inspection subject, an injection unit configured to inject a fluid toward a bottom part of the inspection subject accommodated in the inspection unit, a suction unit configured to suction a material separated from the bottom part of the inspection subject together with the fluid, and an analysis unit configured to analyze a component of the material introduced into the suction unit and the electromagnetic wave received by the reception unit.

Abstract: An antenna structure includes a dielectric lens, an antenna substrate on the dielectric lens, and antenna electrodes on the antenna substrate. Each of the antenna electrodes may include a wire electrode and an empty plane having a triangular shape defined by the wire electrode. The antenna structure can reduce periodic reflection of a high frequency signal, suppress a periodic gain reduction phenomenon, and provide flat gain characteristics in a wide frequency band.

Abstract: Disclosed is a method for fabricating a terahertz device, the method including providing a substrate, doping a conductive impurity on an upper surface of the substrate to form an electrode layer, patterning the electrode layer to form antenna electrodes, and forming a photomixer between the antenna electrodes.

Abstract: Provided herein is a method of treating bone resorption associated with osteoclastic activity in a subject in need thereof. The method includes reducing the level of FMS intracellular fragments (FICDs) in the subject.

Abstract: Provided is an antenna structure. The structure includes a dielectric lens, an antenna substrate on the dielectric lens, and antenna electrodes on the antenna substrate. Here, each of the antenna electrodes may include a wire electrode and an empty plane having a triangular shape defined by the wire electrode.

Abstract: Provided is a terahertz light source device including an antenna, a plurality of wire electrodes configured to connect the antenna to a power source, a capacitor connected to the wire electrodes between the antenna and the power source, and a plurality of resonance tunneling diodes connected to the wire electrodes between the capacitor and the antenna, and configured to generate a terahertz wave by coupling with the capacitor as a parallel resonance circuit with respect to the power source.

Abstract: Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.

Abstract: A Schottky barrier diode includes a substrate, a first semiconductor layer formed on the substrate, a second semiconductor layer formed on the first semiconductor layer, and a metal layer formed on the second semiconductor layer to form a Schottky barrier, wherein the first semiconductor layer and the second semiconductor layer are formed of different materials, and a conduction band offset between the first semiconductor layer and the second semiconductor layer is less than a set value.

Abstract: Provided is a waveguide including an input end configured to receive an input wave from an outside; a filtering portion configured to change a frequency range of the input wave; an output end configured to output an output wave of which a frequency range is changed from the frequency range of the input wave; and an inner wall controller configured to control a size of an inner wall of the filtering portion such that the frequency range of the input wave changes to the frequency range of the output wave.

Abstract: Disclosed is a terahertz wave generating apparatus. The terahertz wave generating apparatus includes a dual mode laser including a first single mode laser that generates a first beating signal, a gain adjustment region that modulates the first beating signal, and a second single mode laser that generates a second beating signal, and a photomixer that mixes the modulated first beating signal and the second beating signal, and that modulates a current supplied based on a beating frequency of the mixed beating signals to generate a terahertz wave signal, and the gain adjustment region is formed between the first single mode laser and the second single mode laser, and the first beating signal is output from the first single mode laser to the gain adjustment region and is modulated based on a reverse bias voltage supplied to the gain adjustment region.

Abstract: A measurement apparatus for measuring a coating amount of a slurry according to the present disclosure includes a light emitter configured to irradiate terahertz wave onto a release paper coated with the slurry, a light receiver configured to receive the terahertz wave, which is irradiated from the light emitter and passes through the release paper coated with the slurry, to obtain a power of the terahertz wave, and a calculating part configured to calculate a thickness of an electrode, formed from the slurry applied to the release paper, based on the power of the terahertz wave received by the light receiver.

Abstract: A Schottky barrier diode includes a substrate, a first semiconductor layer formed on the substrate, a second semiconductor layer formed on the first semiconductor layer, and a metal layer formed on the second semiconductor layer to form a Schottky barrier, wherein the first semiconductor layer and the second semiconductor layer are formed of different materials, and a conduction band offset between the first semiconductor layer and the second semiconductor layer is less than a set value.

Abstract: Provided is a waveguide including an input end configured to receive an input wave from an outside; a filtering portion configured to change a frequency range of the input wave; an output end configured to output an output wave of which a frequency range is changed from the frequency range of the input wave; and an inner wall controller configured to control a size of an inner wall of the filtering portion such that the frequency range of the input wave changes to the frequency range of the output wave.

Abstract: An image acquisition apparatus including a beam source, a beam expander, a beam splitter, an interferometer reference arm, a sample, a beam diffuser, a telecentric f-? lens, a beam scanner, and a beam detector uses a terahertz wave to acquire a surface image and a depth image of the sample.

Abstract: Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.

Abstract: An image acquisition apparatus including a beam source, a beam expander, a beam splitter, an interferometer, a sample, a beam diffuser, a telecentric f-? lens, a beam scanner, and a beam detector uses a terahertz wave to acquire a surface image and a depth image of the sample.

Abstract: Disclosed is a terahertz, reflection imaging system using a rotating polyhedral mirror and a telecentric f-theta lens. The terahertz reflection imaging system may include a light source configured to output a terahertz, beam, a rotating polyhedral mirror of which a mirror is combined with each of polyhedral faces, and configured to reflect the terahertz beam transmitted from the light source in a direction in which a specimen is disposed, a telecentric f-theta lens configured to transmit the terahertz beam reflected from the rotating polyhedral mirror to the specimen and correct a chief ray of the terahertz beam reflected from the rotating polyhedral mirror to be parallel to an optical axis of the telecentric f-theta lens, and a detector configured to detect a terahertz beam reflected from the specimen.

Abstract: A coil device comprises a first coil, a second coil, a first conductor, and a first film. The second coil is disposed inside an inner boundary line of the first coil. The first conductor is disposed between the inner boundary line of the first coil and an outer boundary line of the second coil to dissipate heat. The first film is disposed on upper surfaces of the first coil, the second coil, and the first conductor.