Abstract:
The present invention relates to a spectral analyzer using a CARS microscopy which can measure the thickness and identification of kinds of chemicals of organic thin films at high spatial precision using a non-destructive method. The spectral analyzer using the CARS microscopy according to the present invention measures the wavelength and intensity of the coherent anti- stakes Raman scattering (CARS) signals scattered by irradiating stokes beam and pump beam to the thin films to measure the thickness of the thin films and to analyze the chemicals. The spectral analyzer using the CARS microscopy according to the present invention is based on a vacuum spectroscopy corresponding to a vibration mode of a molecule by using a CARS microscopy that is one of third-order non- linear optical phenomenons, making it possible to analyze each component, measure the components non- invasive Iy and in real time, and overcome a general diffraction limitation of spatial resolution.
Abstract:
A method for implementing a mouse algorithm using a tactile sensor is disclosed. The tactile sensor includes a plurality of force sensors, and is used to freely move and rotate a mouse cursor in X, Y and Z directions, so that it can be applied as an interface unit for a slim device such as a mobile phone. The algorithm processes a touch input of the tactile sensor. This algorithm is implemented to calculate a force vector of a contact point based on the magnitude and direction of force touching the tactile sensor and sense touch input information regarding the moving distance and direction of a mouse cursor based on the calculated force vector.
Abstract:
The present invention relates to methods for preparing standard reference materials using epoxy resin. Also, the present invention provides new methods for preparing homogeneous disc-type standard reference materials by curing the epoxy resin in silicone mold at high temperature to solve the problems of : i) the epoxy resin is thermosetting, ii) it is impossible to prepare homogeneous standard reference materials having regular forms due to completely adhere to general frames such as metals, and iii) the surface of standard reference materials is contaminated when a releasing agent is used on the die.
Abstract:
The present invention relates to an optical frequency synthesizer and an optical frequency synthesizing method using femtosecond laser optical injection locking, which inject a femtosecond laser optical frequency comb into a diode laser, thus obtaining single-mode laser light, phase-locked to only a single mode in the optical frequency comb, and which change the optical frequency and interval, that is, the repetition rate, of a femtosecond laser, together with the frequency of a semiconductor laser, thus scanning optical frequencies while realizing a single desired optical frequency. The optical frequency synthesizer using femtosecond laser optical injection locking, includes a mode-locked femtosecond laser (110), which is a master laser, and a diode laser (120), which is a slave laser and into which laser light emitted from the femtosecond laser is injected.
Abstract:
A tactile sensor for curved surfaces applicable to objects with multi-dimensional curvature and a small radius of curvature and a manufacturing method thereof are disclosed. The tactile sensor for curved surfaces includes a lower pattern including a plurality of lower polymer film layers spaced at specified intervals in a lower direction, lower metal layers disposed on the lower polymer film layers, and a number of lower resistors disposed on the lower metal layers, an upper pattern including a plurality of upper polymer film layers spaced at specified intervals in a direction perpendicular to che lower direction, upper metal layers disposed on the upper polymer film layers, and a number of upper resistors disposed below the upper metal layers to be electrically connected to the lower resistors, and a lower polymer layer and an upper polymer layer to bond the lower pattern and the upper pattern to each other.
Abstract:
The present invention relates to a method for screening and discovering bioactive materials using specifically selected protein domains interacting with specific intracellular proteins, and more particularly, to (1) a screening method including confirmation of changes in biological activities by introducing a specific protein domain into microorganisms or animal and plant cells and (2) a screening method including confirmation of changes in biological activities after introducing the specific protein domains into a number of microorganisms or animal and plant cells. Via this method, according to the present invention, it is possible that the selected protein domains can be used to develop novel antibiotic agents with antimicrobial activity effective on bacteria resistant to conventional antibiotics while requiring less genetic information compared with a conventional drug which targets specific genes.
Abstract:
The present invention relates to an analog-to-digital converter (ADC) and an analog-to-digital conversion method employing a Josephson digital-to-analog converter (DAC) into an extremely accurate ADC of a physical metrology grade. The ADC includes: a front end ADC for converting an analog input signal into digital data; the Josephson DAC for receiving the digital data from the front end ADC and converting the received digital data into reference analog voltage; a differential ADC for extracting a difference voltage between a reference analog voltage of the Josephson DAC and an unknown input signal; and a data processor for summing output data of the differential ADC and output data of the front end ADC and outputting the summed result. The present invention enables to realize a highly stable Josephson ADC with little time and low cost, which is more accurate in a long-term as compared to any existing semiconductor measurement unit and has a performance that is rarely changed during a lifespan, by combining a programmable array and an existing semiconductor ADC.
Abstract:
The present invention relates to a technique that remarkably increases the processing speed of a conventional ultrafast laser micro process having a very high processing accuracy. According to the present invention, a laser processing method based on transient changes in the status of laser- induced material couples a pulse of a ultrafast laser to a pulse of at least one auxiliary laser other than the ultrafast laser to reversibly change a material to be processed.
Abstract:
Disclosed herein is an apparatus for high spatial resolution laser desorption ionization mass analysis. A main body is installed in an ion inlet of a mass analyzer. A reflector reflects a laser beam frontward of the main body. A sub-mirror diffuses the laser beam, reflected by the reflector, towards the main body. A main mirror condenses the laser beam, diffused by the sub-mirror, to front outside of the main body to ionize a specimen placed frontward. A hollow capillary is provided to introduce ions generated by condensation of the main mirror into the mass analyzer.
Abstract:
Provided is a plasma diagnostic apparatus includes a probe unit, which is inserted into a plasma or disposed at boundary of a plasma, the apparatus includes: a signal supplying unit having a signal supplying source; a current detecting/voltage converting unit for applying a periodic voltage signal applied from the signal supplying unit to the probe unit, detecting the magnitude of the current flowing through the probe unit, and converting the detected current into a voltage; and a by-frequency measurement unit for computing the magnitude and phase of individual frequency components of the current flowing through the probe unit by receiving the voltage output from the current detecting/voltage converting unit as an input.