Abstract:
PROBLEM TO BE SOLVED: To provide a technology of taking an image of a sample obtained by injecting fluid into a depression, and capable of reducing density unevenness of an image caused by irradiation light.SOLUTION: A sample obtained by injecting fluid into a well is irradiated with illumination light in which light amount distribution is set to a standard state from, for example, an illumination unit that can arbitrarily set light amount distribution by a liquid crystal shutter, so as to obtain a preliminary photographic image; and brightness distribution of the image is detected. The light amount distribution of the illumination light injected into the well is set for imaging according to a detection result so that a portion having lower brightness receives a larger amount of incident light, and thereby brightness unevenness in the preliminary photographic image can be cancelled.
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for solving the problems that a sufficient contrast cannot be obtained only by the irradiation and detection of an electromagnetic wave pulse and that a signal cannot be sufficiently obtained without a clear interface at a desired position in a reflection system.SOLUTION: An electromagnetic wave pulse measuring device includes: an elastic vibration wave generation section 1 for emitting an acoustic wave to a predetermined area of a sample; an electromagnetic wave pulse generation section 2 for applying an electromagnetic wave pulse to the predetermined area to which the acoustic wave is applied; and an electromagnetic wave pulse detection section 3 for measuring a waveform of the electromagnetic wave pulse modulated in the predetermined area by the acoustic wave. A time when a phase angle of the acoustic wave during the emission of the acoustic wave has a predetermined value is taken as the timing for measuring the waveform of the electromagnetic wave pulse.
Abstract:
PROBLEM TO BE SOLVED: To provide an optical pulse generator capable of changing a time difference between pump light and probe light at a high speed with a simple configuration.SOLUTION: The optical pulse generator for supplying pump light and probe light includes a light source 1, and modulation means 2 and 3 for branching light from the light source 1 into pump light and probe light by modulating the light. The modulation means 2 and 3 are configured so as to make a frequency for modulating the light variable. A time difference between a time when the pump light is made incident on an object and a time when the probe light is made incident on the object is changed by changing the frequency by the modulation means 2 and 3.
Abstract:
An optical sensor and a method of operating the optical sensor are provided. The optical sensor includes a light source configured to emit a light, and a path adjuster configured to adjust a traveling path of the light to reflect the light at a first time, and allow the light to pass through the path adjuster at a second time. The optical sensor further includes a light receiver configured to receive a reference light among the reflected light, and receive, among the light passing through the path adjuster, a measurement light related to a target material.