Abstract: Provided are an illumination light source and a substrate inspection apparatus including the same. The substrate inspection apparatus includes a first pump light source which generates first pump light, a first gain medium which uses the first pump light to obtain a gain of first illumination light, first prisms provided at one side of the first gain medium to split the first illumination light, first mirrors provided at one side of the first prisms to reflect the first illumination light onto the first gain medium, and a first bandwidth selector provided between the first mirrors and the first prisms to select a first wavelength bandwidth of the first illumination light.

Abstract: Disclosed is a hyperspectral imaging device, which includes a code generator that generates a code signal including first code information and second code information which are orthogonal to each other, a light transmitter that receives the code signal and generates output light including first modulated light modulated based on the first code information and second modulated light modulated based on the second code information, and a receiver that receives reflected light from which the output light is reflected from a sample and obtains a hyperspectral image based on the reflected light and the code signal, and the first modulated light has a first wavelength band and the second modulated light has a second wavelength band different from the first wavelength band.

Abstract: The present invention proposes a technology that enables in vivo imaging while expanding the penetration depth of light into the tissue in an ultrasound-induced optical clearing microscopy (USOCM) system using an optical microscope, in particular, a non-linear optical microscope such as a two-photon microscope, and an ultrasonic transducer. For maximum efficiency, the ultrasonic transducer should be positioned between an optical microscope (objective lens) and the sample. In this case, since an existing ultrasonic transducer is opaque, a laser beam of an optical microscope using an ultrashort laser system cannot pass through the existing ultrasonic transducer. In order to solve such a problem, a transparent ultrasonic transducer is applied such that there is no problem in a laser beam passing therethrough and reaching a sample.

Abstract: A femtosecond pulse laser apparatus includes a pump light source configured to provide a pump light, a gain medium configured to obtain a gain of a laser light using the pump light, a first curved mirror and a second curved mirror, which are provided at both sides of the gain medium, an output mirror configured to transmit a portion of the laser light and reflect the other portion of the laser light to the gain medium, a mode locking portion configured to generate a femtosecond pulse of the laser light, and an acoustic wave generator configured to provide an acoustic wave into the gain medium so as to adjust self-phase modulation of the laser light.

Abstract: Provided are a pulse compressor and a two-photon excited fluorescence microscope. The microscope includes a light source which generates a laser beam having a pulse, a pulse compressor which compresses the pulse of the laser beam, an objective lens which provides the laser beam to a specimen, and image sensors which receive the laser beam and obtain images of the specimen. The pulse compressor may include a grating plate, a corner cube provided on one side of the grating plate, and a retroreflector provided on the other side of the grating plate.

Abstract: An apparatus for polymerase chain reaction (PCR) diagnosis for normalizing light source power and fluorescence power and an operating method thereof are disclosed.

Abstract: Disclosed is a PCR diagnosis apparatus. This apparatus includes a PCR chip configured to store a PCR sample, a light source part configured to generate laser light to be provided to the PCR sample, an optical modulator provided between the light source part and the PCR chip and configured to selectively provide the laser light to the PCR sample according to a code, a sensor configured to detect fluorescent light generated in the PCR sample by the laser light, and a code generator connected between the optical modulator and the sensor and configured to transmit an orthogonal code to the optical modulator and the sensor.

Abstract: Disclosed is a two-photon microscope. This microscope includes a first laser light source configured to generate first laser light, a second laser light source configured to generate second laser light having a longer wavelength than a wavelength of the first laser light, an objective lens configured to provide the first laser light and the second laser light to a sample, a sensor configured to detect first fluorescent light and second fluorescent light generated in the sample due to the first laser light and the second laser light, and first and second code controllers provided between the first and second laser light sources and the objective lens and configured to switch the first laser light and the second laser light respectively.

Abstract: According to one aspect of the present disclosure, provided is a film for hair dyeing comprising: a base film; and an ink layer for hair dyeing on the base film, wherein the ink layer for hair dyeing comprises a first pigment for masking hair color, a second pigment for expressing desired color on hair, a resin, and wax. According to one aspect of the present disclosure, provided is a printer for hair dyeing comprising: a body including a printer head; and a film cartridge for hair dyeing mounted to the body over the printer head; wherein the printer head may be in contact with a film included in the film cartridge for hair dyeing and comprises a hair holder of which one end is connected to one end of the body so as to be folded and unfolded with respect to the body. The hair may be grabbed between the body and the hair holder, and the printer head may be positioned on a side facing the hair holder.

Abstract: A femtosecond pulse laser apparatus includes a pump light source configured to provide a pump light, a gain medium configured to obtain a gain of a laser light using the pump light, a first curved mirror and a second curved mirror, which are provided at both sides of the gain medium, an output mirror configured to transmit a portion of the laser light and reflect the other portion of the laser light to the gain medium, a mode locking portion configured to generate a femtosecond pulse of the laser light, and an acoustic wave generator configured to provide an acoustic wave into the gain medium so as to adjust self-phase modulation of the laser light.

Abstract: An autocorrelator and a pulse amplifying device including the same are provided. The autocorrelator includes a parabolic mirror configured to transmit and reflect pulse laser beam, a prism on one side of the parabolic mirror and configured to split the pulse laser beam, a first lower retro-reflector under the prism and provided at a first distance from the prism to reflect a portion of the pulse laser beam, a first upper retro-reflector on the prism, provided at a second distance different from the first distance from the prism, and configured to reflect another portion of the pulse laser beam to generate a first time difference between pulses of the pulse laser beam upper retro-reflector, and a first sensor under the parabolic mirror and configured to receive the pulse laser beam to detect a pulse width of the pulse laser beam.

Abstract: Provided are a laser device and an optical apparatus including the same. The laser device includes a pump light source configured to provide pump light, a gain medium configured to acquire a gain of seed laser light by using the pump light, a first curved mirror and a second curved mirror, which are provided at both sides of the gain medium to reflect the seed laser light into the gain medium, an output mirror configured to transmit a portion of the seed laser light reflected by the second curved mirror and reflect the other portion of the seed laser light to the gain medium, a first acoustic wave generator connected to the gain medium and configured to provide a first photoacoustic wave in the gain medium, and a second acoustic wave generator connected to the gain medium and configured to provide a second photoacoustic wave in the gain medium.

Abstract: A femtosecond pulse laser apparatus includes a pump light source configured to provide a pump light, a gain medium configured to obtain a gain of a laser light using the pump light, a first curved mirror and a second curved mirror, which are provided at both sides of the gain medium, an output mirror configured to transmit a portion of the laser light and reflect the other portion of the laser light to the gain medium, a mode locking portion configured to generate a femtosecond pulse of the laser light, and an acoustic wave generator configured to provide an acoustic wave into the gain medium so as to adjust self-phase modulation of the laser light.

Abstract: A method of manufacturing an electrode for water electrolysis having high catalytic activity for a hydrogen evolution reaction by forming a catalyst layer in which molybdenum oxide and a Ni-Mo-based alloy are mixed and an electrode for water electrolysis manufactured thereby are described. The method includes preparing catalyst materials including a solvent, a nickel (Ni) precursor, a molybdenum (Mo) precursor, and sodium citrate, preparing an electrode base material, obtaining a plating solution by dissolving the nickel (Ni) precursor, the molybdenum (Mo) precursor, and the sodium citrate in the solvent, and forming a catalyst layer on the surface of the electrode base material by immersing the electrode base material in the plating solution and applying an electric current.

Abstract: Disclosed is a PCR diagnosis apparatus, which includes a transmitter including a multi-wavelength light source for outputting a first light source signal and a second light source signal having different wavelengths, and that applies the first light source signal and the second light source signal to a PCR chip including samples each including a plurality of DNAs, a code generator that generates first code signal and second code signal corresponding to the first light source signal and the second light source signal, respectively, and which are orthogonal to each other, and a receiver that performs a dot product on fluorescent data and each of the first code signal and the second code signal, wherein the fluorescent data include a first fluorescent signal and a second fluorescent signal emitted from a phosphor attached to each of the plurality of DNAs.

Abstract: Disclosed is a femtosecond laser device. The femtosecond laser device includes a pulse oscillator configured to generate a laser pulse, a pulse width stretcher configured to stretch a width of the laser pulse, a pulse width compressor connected to the pulse width stretcher to compress the width of the laser pulse, a pulse amplifier disposed between the pulse width compressor and the pulse width stretcher to amplifier an intensity of the laser pulse, and a nonlinear pulse attenuator including an optical fiber connected between the pulse width amplifier and the pulse width stretcher and deformed to have a spiral shape, a stretched length, or a twist.

Abstract: The present disclosure provides a sample analyzer and an analyzing method thereof. The sample analyzer includes a first beam source configured to provide a first energy beam to a sample, a second beam source configured to provide a second energy beam, which is different from the first energy beam, to the sample, a reflected beam sensor disposed between the second beam source and the sample to detect a reflected beam of the second energy beam, which is reflected by one side of the sample, and a transmitted beam sensor disposed adjacent to the other side of the sample to detect a transmitted beam of the second energy beam.

Abstract: Provided is a two-photon spectroscopy including a light source configured to generate first laser light having a pulse, a pulse width correction device configured to receive the first laser light to output a second laser light, an optical system through which the second laser light passes, a first two-photon sensor configured to measure a first pulse width of the first laser light generated from the light source, and a second two-photon sensor configured to measure a second pulse width of the second laser light passing through the optical system, wherein the pulse width correction device corrects a difference between the first pulse width and the second pulse width.

Abstract: A femtosecond pulse laser apparatus includes a pump light source configured to provide a pump light, a gain medium configured to obtain a gain of a laser light using the pump light, a first curved mirror and a second curved mirror, which are provided at both sides of the gain medium, an output mirror configured to transmit a portion of the laser light and reflect the other portion of the laser light to the gain medium, a mode locking portion configured to generate a femtosecond pulse of the laser light, and an acoustic wave generator configured to provide an acoustic wave into the gain medium so as to adjust self-phase modulation of the laser light.