Korea Institute of Science and Technology

Young Min Jhon

Seok Pil Lee

Jae Hun Kim

Deok Ha Woo

Sun Ho Kim

Young Tae Byun

Taik Jin Lee

Minah Seo

Taikjin Lee

Min Ah Seo

Chul Ki Kim

Chulki Kim

Joon Kui Ahn

Min Chul Park

Jaehun Kim

Young In Jhon

Yong Soo Kim

Yongsang Ryu

Byunghyuck Moon

Yong Kim

Jaebin Choi

Chi Woong Jang

Myung Suk Chun

Sanghun Lee

Dong Hwan Kim

Suk Woo Nam

Seok Hwan Kim

Hyun Seo Park

Beom Ju Shin

Young-Hwan Kim

Chang Won Yoon

Minho Choi

Dong Kyu Lee

Sin-Doo Lee

Il Ki Han

Sang Bae Lee

Sang Kuk Kim

Eui-Sang Yu

Yong-Sang Ryu

Chun Keun Kim

Deokha Woo

Sang Hyuck Kim

Bong Kyu Kim

Jong Chang Yi

ChaeHyun Lim

Sang Sam Choi

Joo-Hiuk Son

Ju Yeong Oh

Hyo Suk Kim

Myong Wook Kim

Woon Jo Cho

Kwang Nam Kang

Min-Jun Choi

Byeong Ho Park

Jae Cheol Jo

S Joon Kwon

Min-Chul Park

Eun Gyeong Kim

Yoon Ho Park

Joonhyun Kang

Joon Mo Ahn

Sehyun Kwon

Jae Seong Kim

Jae Bin Choi

Kwang Nam Kim

Kyeong Heon Kim

Hyunseok Song

Hui Dong Yang

Geun Chang Choi

Young In John

Byung Kwon Kang

Shin Geun Kim

The present disclosure relates to a photoacoustic gas sensor for detecting the presence or absence of gas using the interaction of a laser beam and gas molecules. The integrated photoacoustic gas sensor according to an embodiment includes a light output unit; a lens unit configured to concentrate a laser beam output from the light output unit; and a photoacoustic sensing unit having a quartz tuning fork aligned on the lens unit and configured to convert a vibration, generated when the laser beam passing through the lens unit interacts with gas molecules, into an electric signal.

Integrated photoacoustic gas sensor and method for manufacturing the same

Provided are a saturable absorber including at least one material selected from a group of MXenes, and a Q-switching and mode-locked pulsed laser system using the same.

Saturable-absorber-based laser system

The present invention relates to a terahertz (THz) wave detecting sensor including a MXene material represented by the following Formula 1 as a sensing material:MX,&#x2003;&#x2003;[Formula 1] wherein, in Formula 1, M is at least one transition metal selected from early transition metal elements, X is at least one selected from C and N, and n is an integer selected from 1 to 3.

Terahertz (THZ) wave detecting sensor and THZ wave detecting device including the same

The present invention relates to an unmanned aerial vehicle system having a multi-rotor type rotary wing. The unmanned aerial vehicle system having a multi-rotor type rotary wing includes a first unmanned aerial vehicle, at least one second unmanned aerial vehicle, and a bridge that connects the first unmanned aerial vehicle and the at least one second unmanned aerial vehicle to be separable from each other, wherein the at least one second unmanned aerial vehicle is moveable by the first unmanned aerial vehicle in a state where the at least one second unmanned aerial vehicle is coupled to the first unmanned aerial vehicle by the bridge without being driven, and the at least one second unmanned aerial vehicle is separable from the first unmanned aerial vehicle which is in flight.

Unmanned aerial vehicle system having multi-rotor type rotary wing

The present invention provides a chalcogenide phase-change material represented by the following Chemical Formula 1, and a memory device including the same.M(ASbTe)&#x2003;&#x2003;[Chemical Formula 1] In Chemical Formula 1, M denotes an element having a doping formation energy &#x394;Ein a range of &#x2212;3 eV/atom to 0.5 eV/atom, A denotes indium (In) or germanium (Ge), a and b are each positive numbers and selected to satisfy a+b=1, x ranges from 0.15 to 0.3, and y ranges from 0.05 to 0.25.

Four-or-more-component-based chalcogenide phase-change material and memory device comprising the same

A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.

System and method for adjusting transmittance for supersensitive optical sensor

The present disclosure discloses a double trigger type single pulse laser apparatus configured to suppress additional pulses to increase single pulse energy and improve stability of output as compared to a conventional single trigger type single pulse laser apparatus. According to the present invention, there is provided a single pulse laser apparatus including a resonator which has a first mirror, a second mirror, a gain medium, an electro-optic modulator and an acousto-optic modulator configured to respectively perform Q-switching and mode-locking, the single pulse laser apparatus including a first photodiode configured to measure a laser beam oscillated by the resonator.

Single pulse laser apparatus using double trigger

A metamaterial for an electromagnetic wave filter includes a substrate; and a film disposed on the substrate and having a set of slots arranged to form a rotationally symmetric pattern, which is patterned in an intaglio shape, or a set of structures arranged to form a rotationally symmetric pattern, which is patterned in an embossed shape, to control a transmission rate according to polarization of an electromagnetic wave incident on the film. The set of slots or the set of structures have an array angle that is determined such that the transmission rate and a reflectivity thereof have constant values according to the polarization of the electromagnetic wave incident on the film, and have a chloroplast molecular structure pattern in which the set of slots or the set of structures are arranged in pentagonal and hexagonal shapes.

Metamaterial for electromagnetic wave filter

Disclosed are an apparatus for estimating a pedestrian position based on pedestrian motion recognition, and a method therefor. The method for estimating the pedestrian position based on pedestrian motion recognition includes recognizing a specific motion of a plurality of motions of the pedestrian, performing a unique pedestrian dead-reckoning (PDR) technique corresponding to the recognized specific motion among unique PDR techniques for each of the plurality of motions of the pedestrian, and estimating the pedestrian's position by the performed unique PDR technique.

Apparatus for inferring pedestrian position based on pedestrian movement detection, and method therefor

A method for manufacturing an optical sensor includes forming a reflective metal layer on a substrate, forming an insulator layer on the reflective metal layer, inducing self-assembly of a metal nanostructure layer on the insulator layer, and selectively etching the insulator layer through a reactive ion etching process to form a plurality of pillars and a plurality of spaces defined by the plurality of pillars. The method for manufacturing a plasmonic optical sensor according to this embodiment facilitates the formation of nanostructures difficult to pattern and form on the large scale at a low cost, and provides a plasmonic optical sensor with repeatability.

Optical sensor, manufacturing method thereof, and fluid analysis method using the same

Provided are a method of fabricating a 3-dimensional transistor sensor and the sensor and a sensor array thereof. The method of fabricating the 3-dimensional transistor sensor includes forming an insulating layer on a silicon substrate, forming a silicon layer on the insulating layer and forming a 3-dimensional silicon fin by etching the silicon layer, forming a source area and a source electrode at one end of the silicon fin, forming a drain area and a drain electrode at the other end the silicon fin, and forming a gate area at a center of the silicon fin, surrounding three surfaces of a gate with a gate insulating layer, forming a sensing gate layer configured to surround a portion of the gate insulating layer, and sealing an upper portion of the gate insulating layer excluding the sensing gate layer.

Method of fabricating 3-dimensional transistor sensor, the sensor and sensor array thereof

Disclosed is a system for observing the conformational change in a protein, which includes a sensing element which is configured to amplify an electromagnetic wave of a specific frequency; a light irradiation unit which is configured to irradiate a photoreceptor protein solution coated on the sensing element with light; an electromagnetic wave irradiation unit which allows an electromagnetic wave to be incident in a direction perpendicular to the bottom surface of the sensing element; a detection unit which is configured to detect an electromagnetic wave reflected from the bottom surface of the sensing element; and a control unit which is configured to observe the conformational change in the photoreceptor protein based on the detected electromagnetic wave.

System for observing conformational change in protein

One aspect of the disclosed is to provide a method of manufacturing a nanoporous multilayer graphene membrane, including a first step of oxidizing a surface of a multilayer graphene membrane, a second step of reducing the oxidized surface of the multilayer graphene to carry out reductive etching such that oxidized carbon atoms on the surface are naturally and randomly dispersed, and a third step of repeatedly performing a series of the first and the second steps until nanopores penetrating the multilayer graphene are formed.

Method of manufacturing nanoporous graphene membrane

Disclosed herein is a single pulse laser apparatus which includes a first mirror and a second mirror disposed at both ends of the single pulse laser apparatus and having reflectivities of a predetermined level or more; a gain medium rotated at a predetermined angle and configured to oscillate a laser beam in a manual mode-locking state; a linear polarizer configured to output a beam having a specific polarized component of the oscillated laser beam; an etalon configured to adjust a pulse width of the oscillated laser beam; and an electro-optic modulator configured to perform Q-switching and single pulse switching.

Single pulse laser apparatus

Provided is a cell-level retinal disease detection apparatus including a light imaging means configured to emit light to an eyeball and a light processing means which receives light reflected by the eyeball and processes and compensates light for an astigmatism aberration thereof which occurs at the eyeball to compensate. Here, the light processing means includes a wavefront sensor which senses the astigmatism aberration of the reflected light which occurs due to the eyeball and a light compensation mirror which compensates the light based on the sensed astigmatism aberration, and compensates for a difference in the astigmatism aberration to detect a disease of a retina of the eyeball.

Cell-level retinal disease detection apparatus

Growing community of inventors

Seoul, South Korea

Young Min Jhon