Electronics and Telecommunications Research Institute

Samsung Electronics Co., Ltd.

Hong-Seok Seo

Chul Huh

Dong Hoon Song

Bong Je Park

Joon Tae Ahn

Bongki Mheen

Gyu Dong Choi

Won Kyoung Lee

Jeong Won Park

Jung-Ho Song

Min Hyup Song

Sang Kyun Lee

Kyong Hon Kim

Won Seok Han

Dae Kon Oh

Bong Ki Mheen

Jae-Sik Sim

Minhyup Song

Yong Gyu Choi

Woon Jin Chung

Kyung-Hwan Oh

Un-chul Paek

Myoungsook Oh

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

An apparatus for a polymerase chain reaction (PCR) diagnosis includes a transmitter that includes a multi-wavelength light source outputting a first light source signal and a second light source signal, which have different wavelengths, and that applies the first light source signal and the second light source signal to a DNA sample, a code generator that generates a first code signal and a second code signal corresponding to the first light source signal and the second light source signal, respectively, a delay controller that generates a first delay signal and a second delay signal corresponding to the first code signal and the second code signal, respectively, and a receiver that compares the first and second fluorescent signals emitted from the DNA sample with the first and second delay signals, and accumulatively integrates the first fluorescent signal or the second fluorescent signal based on the comparison result.

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

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 spectroscopic apparatus includes a laser irradiation device that receives an orthogonal code including a series of bits each having a first value or a second value, generates a control signal having a pulse that has a width shorter than a width of a bit section in the bit section corresponding to a bit having the first value, generates a pulsed laser beam having a pulse width shorter than the bit section using the pulse as a trigger, and irradiates an incident beam including the generated pulsed laser beam to a sample, and a detector that receives a detection signal generated from the sample and the orthogonal code, generates an orthogonal code signal of the same waveform as that of the incident beam, based on the orthogonal code, and demodulates a Raman signal, based on a correlation between the generated orthogonal code signal and the Raman signal.

Spectroscopic apparatus and spectroscopic method using time resolved coding

A LIDAR system is provided. The LIDAR system includes: a light transmitting unit configured to drive a plurality of light emitting elements by light emitting units to irradiate light to different positions of a target object; and a light receiving unit configured to detect light that is reflected at different positions of the target object and then is incident to different light receiving positions through a plurality of light receiving regions.

LIDAR system

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

A semiconductor laser diode light source package includes: a seed light source for outputting signal beams; a pump beam source for outputting pump beams; and at least one mirror for transmitting the signal beams to a core of an output optical fiber and transmitting the pump beams to first cladding of the output optical fiber, wherein the seed light source, the pump beam source, and the at least one mirror are realized in a semiconductor chip, and the output optical fiber is connected to an end terminal of the semiconductor laser diode light source package.

Semiconductor laser diode light source package

A spectroscopic apparatus includes a splitter that receives a first detected signal output from a sample to which an incident beam is irradiated, and outputs a reflected signal and a second detected signal by splitting the first detected signal, and a signal processor that receives the reflected signal and the second detected signal, and extracts a Raman signal from the second detected signal in response to the received reflected signal.

Spectroscopic apparatus based on asynchronous modulation

There are provided an optical receiver and a laser radar including the same. The optical receiver includes a plurality of optical detecting units configured to convert an optical signal reflected from a target into an electrical signal and to output the electrical signal, a signal combiner configured to combine output signals of the plurality of light detecting regions, a plurality of switches provided between the plurality of optical detecting units and the signal combiner, and a controller configured to control the plurality of switches so that the plurality of optical detecting units are selectively connected to the signal combiner based on whether the optical signal to reflected from the target is input. Therefore, it is possible to make a module small, to improve stability and reliability, and to reduce a signal to noise ratio.

Optical receiver and laser radar with scan operation

A laser radar system includes a first light source unit including a signal light source&#x2014;a seed laser diode or a light source for amplifying a laser beam from the seed laser diode&#x2014;and a pump laser diode, a second light source unit disposed to be spaced apart from the first light source unit, the second light source unit including an optical amplifier for amplifying a signal output from the first light source unit, and an optical connector for connecting the first light source unit and the second light source unit to each other, wherein the second light source unit is disposed at an end of a laser transceiver unit of the laser radar system.

Growing community of inventors

Daejeon, South Korea

Hong-Seok Seo