Electronics and Telecommunications Research Institute

Gwangju Institute of Science and Technology

Dong Hoon Song

Moon Youn Jung

Hong-Seok Seo

Chul Huh

Dong-Ho Shin

Won Bae Cho

Hwang Woon Lee

Sang Kyun Lee

Jeong Won Park

Seunghwan Kim

Nam Soo Myung

Hyung Ju Park

Dong Ho Shin

Mun Youn Jung

Do Kyeong Ko

Jin Sun Kim

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

Apparatus for PCR diagnosis for normalizing light source power and fluorescence power and operating method thereof

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.

Hyperspectral imaging device and operation method of the same

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.

Two-photon microscope

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.

Apparatus and method for PCR diagnosis based on multi-wavelength light source and orthogonal code signals

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.

Femtosecond pulse laser apparatus

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.

Two-photon excited fluorescence microscope for diagnosis of Alzheimer's disease (AD) and mild cognitive impairment (MCI), and pulse compressor including therein

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.

Femtosecond laser device

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.

Sample analyzer and analyzing method thereof

Provided is an ion beam treatment apparatus. The ion beam treatment apparatus includes a laser generation unit, a dividing part dividing a pulse laser beam generated in the laser generation unit into a first laser beam and a second laser beam, a first target part receiving the first laser beam from the dividing part to generate a first ion beam, a second target part receiving the second laser beam from the dividing part to generate a second ion beam, a first path adjusting part adjusting a path of the first ion beam to irradiate the first ion beam to a treated patient, and a second path adjusting part adjusting a path of the second ion beam to irradiate the second ion beam to the treated patient.

Ion beam treatment apparatus

Disclosed is a pulsed laser system. The pulsed laser system comprises a laser oscillator, a first optical amplifier on a rear end of the laser oscillator, a first optical adjustor on a rear end of the first optical amplifier, and a second optical adjustor on a rear end of the first optical adjustor. The first optical adjustor comprises a saturable absorber, an adjusting compressor on a rear end of the saturable absorber, and a first plasma mirror on a rear end of the adjusting compressor.

Pulsed laser system

Provided herein is a light transmitting cable for laser treatment, the cable including a first optical fiber configured to generate a high energy particle by a laser beam transmitted from a light source and to transmit the high energy particle to a target; and an image transmitting cable configured to transmit an image surrounding the target, thereby being capable of treating a tumor with relatively low power output while identifying a location of the tumor.

Light transmitting cable and laser system including the same

Provided are a pulse width stretcher and a chirped pulse amplifier including the same. The pulse width stretcher includes first and second multiple reflection mirrors, and a pulse group-delay dispersion block disposed between the first and second multiple reflection mirrors and configured to refract a pulse laser beam to stretch a pulse width of the pulse laser beam.

Pulse width stretcher and chirped pulse amplifier including the same

Provided may include an electron beam generator, an image apparatus including the same, and an optical apparatus. The optical apparatus includes a first and second laser apparatuses providing a first and second laser beams on a substrate, and a first optical system provided between the first and second laser apparatuses and the substrate to focus the first and second laser beams. The first and second laser beams overlap with each other generating an interference beam, thereby decreasing a spot size of the interference beam to be smaller than a wavelength of each of the first and second laser beams at a focal point.

Electron beam generator, image apparatus including the same and optical apparatus

Provided is a laser system. The laser system includes: a laser device providing a laser pulse; a pulse compressor decreasing a pulse width of the laser pulse; a pulse stretcher disposed between the compressor and the laser device and dispersing the laser pulse; and a filament portion disposed between the pulse stretcher and the pulse compressor, wherein the filament portion transmits the laser pulse to expand a spectrum of the laser pulse by using self focusing and a filament phenomenon of the laser pulse.

Growing community of inventors

Daejeon, South Korea

Dong Hoon Song