Abstract:
The present application discloses various implementations of a laser scanning module. In one implementation, such a laser scanning module comprising an optical isolator including first and second linear polarizers, a collimating optics configured to receive light produced by a laser light source and to pass a substantially collimated light beam to the first linear polarizer, and a scanning unit situated to receive light passed by the second linear polarizer. The first linear polarizer is separated from the collimating optics by a first distance less than a second distance separating the second linear polarizer from the scanning unit.
Abstract:
A method and a system for obtaining a high-resolution image of a volume of a sample using laser imaging are provided. The method includes a step of probing the volume of the sample with a first excitation beam having an intensity profile of maximum intensity at a center thereof, thereby obtaining a positive image of the volume. The method also includes a step of probing the volume of the sample with a second excitation beam having an intensity profile of minimum intensity at a center thereof and defining a peripheral region of maximum intensity around the center, thereby obtaining a negative image of the volume. The method finally includes a step of subtracting the negative image from the positive image, thereby obtaining the high- resolution image of the volume of the sample. Advantageously, embodiments of the invention can be probe- and fluorescence-independent, and be conveniently retrofitted into existing laser imaging systems.
Abstract:
본 발명은 세포나 조직 내부에서 단일 형광 분자 신호를 실시간으로 (수십 Hz 이상) 관측하고자 하는데 그 목적이 있다. 위의 과제를 해결하고자 본 발명은 크게 하나 이상의 단파장 레이저로 이루어진 광원부, 평행광인 광원을 적절한 크기의 선형의 빛으로 만드는 렌즈부, 광원은 반사하고 형광은 투과시킴으로써 광원과 형광을 분리하는 다색거울, 광원을 대상물의 넓은 면적에 조사하고 형광을 대면적 카메라에 뿌려주는 스캔거울, 입사한 광원을 대상물에 조사하고 대상으로부터 나온 형광을 집광하여 다시 내보내는 현미경부, 나온 형광신호로부터 백그라운드를 제거하고 관측하는 검출부로 구성된다.
Abstract:
This disclosure relates to a method and apparatus for producing multiple pixel-by-pixel simultaneous and overlapping images of a sample (100) in a microscope (10) with multiple imaging beams (120, 130). A scanning electron microscope, a focused ion-beam microscope (10), or a microscope having both beams (120, 130), also has an optical microscope (140). A region of interest (210) on a sample (100) is scanned by both charged-particle (120) and optical (130) beams, either by moving the sample (100) beneath the beams (120, 130) by use of a mechanical stage (110), or by synchronized scanning of the stationary sample (100) by the imaging beams (120, 130), or by independently scanning the sample (100) with the imaging beams (120, 130) and recording imaging signals so as to form pixel-by-pixel simultaneous and overlapping images.
Abstract:
A multi-channel scanning system adapted to implement a low channel cross-talk, extra-wide dynamic range scanning method by scanning the same location more than once, wherein at least one time, the power of the excitation light and detector gain are set to High for at least one of the channels and Low for at least one of the other channels and different settings are used in subsequent scans. The scans of the same channel taken with different High and Low settings are merged together to produce one wider dynamic range image.