April 20, 2017

Download Advanced Photon Counting: Applications, Methods, by Peter Kapusta, Michael Wahl, Rainer Erdmann PDF

By Peter Kapusta, Michael Wahl, Rainer Erdmann

This quantity specializes in Time-Correlated unmarried Photon Counting (TCSPC), a strong software permitting luminescence lifetime measurements to be made with excessive temporal answer, even on unmarried molecules. Combining spectrum and lifelong presents a “fingerprint” for deciding upon such molecules within the presence of a history. Used including confocal detection, this enables single-molecule spectroscopy and microscopy as well as ensemble measurements, starting up a tremendous variety of sizzling existence technology purposes resembling fluorescence lifetime imaging (FLIM) and dimension of Förster Resonant strength move (FRET) for the research of protein folding and interplay. numerous technology-related chapters current either the fundamentals and present state of the art, specifically of TCSPC electronics, photon detectors and lasers. the remainder chapters hide a extensive variety of functions and methodologies for experiments and knowledge research, together with the lifestyles sciences, illness facilities in diamonds, super-resolution microscopy, and optical tomography. The chapters detailing new techniques coming up from the combo of vintage TCSPC and fluorescence lifetime with equipment in response to depth fluctuation characterize a very distinctive highlight.

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Single-Photon Counting Detectors for the Visible Range Between 300 and 1,000 nm Fig. 12 Thin-junction SPADs have a wavelength-dependent timing response, which can be as fast as 50 ps for wavelengths >500 nm. Thick-junction SPADs do also show a dependence of the pulse profile from the detection wavelength, but the change is less pronounced. The plot shows the pulse profile of a thick-junction SPAD at 670 nm (red, dash-dot) and the response of thin-junction SPADs at 670 nm (black, dotted) and at 405 nm (blue, solid) neutral regions near the depletion region that walk around by diffusion and eventually reach the edge of the depletion layer, where they are finally accelerated by the electric field.

3 Microchannel Plate Photomultipliers Tubes (MCP-PMT or MCP) . . . . . . . . . . . . 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Detection Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 25 25 27 28 29 30 30 30 31 A. com 23 P. Kapusta et al. 1007/4243_2014_63, © Springer International Publishing Switzerland 2014, Published online: 20 November 2014 24 A.

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 32 32 32 32 33 33 34 34 35 35 37 38 38 40 40 41 1 General Introduction Detectors are core components in every setup based on photon counting. For the spectral range between approx. 300 and 1,000 nm, there are essentially two detector classes available: detectors based on the external photoelectric effect such as photomultiplier tubes, microchannel plate photomultipliers, or hybrid photomultiplier tubes or detectors based on the internal photoelectric effect such as single-photon avalanche diodes.

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