Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Time-Correlated Single-photon Counting (TCSPC)"”.
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Strategies towards high performance (high-resolution/linearity) time-to-digital converters on field-programmable gate arrays
Time-correlated single-photon counting (TCSPC) technology has become popular in scientific research and industrial applications, such as high-energy physics, bio-sensing, non-invasion health monitoring, and 3D imaging. Because of the increasing demand for high-precision time measurements, …
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Long-range depth profiling based on time-correlated single-photon counting
Single-photon detection technologies are of high relevance to light detection and ranging (LiDAR) applications for the range resolution and surface profiling of distant target objects. Modern single-photon detectors offer high quantum efficiencies and small timing jitters in the order of tens of …
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RO-Based TDC Design with Configurable Resolution and Power for SPAD-Based TCSPC LiDAR Applications
Single-photon avalanche diodes (SPAD) are used to measure time-of-flight (ToF) using CMOS time-to-digital Converters (TDCs) for compact, low-cost, and highly integrated three-dimensional (3D) sensing. The TDC specifications are critical determinants of the system's range, resolution, and accuracy. …
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High-speed electrochemistry using ultramicroelectrodes
… electrochemistry on microsecond and nanosecond time scales. Other researchers have used ultramicroelectrodes for this purpose, but their studies have centered on dissolved species and generally use cyclic voltammetry experiments. One purpose of this research was to look at new ways to apply …
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Design and Synthesis of Photoactive Metal-Organic Frameworks for Photon Upconversion and Energy Transfer Studies
… steady-state emission spectroscopy and time-correlated single photon counting (TCSPC) spectroscopy and are compared to those of the corresponding ligand in solution. Both the unique fluorescent properties of the ligand as well as individual framework structure, result in distinctive …
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Design and implementation of high linearity FPGA-TDCs and an integrated large scale TCSPC system for time-resolved applications
The time-correlated single-photon counting (TCSPC) technology is a vital, advanced measurement and analytical tool for time-resolved biomedical, physics research and many industry areas because of its high temporal resolution and sensitivity. Analogue-based conventional TCSPC systems have been …
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Luminescent Properties of Anthracene-based Metal-Organic Frameworks
… steady-state emission spectroscopy and time-correlated single photon counting (TCSPC) emission lifetime spectroscopy. The addition of carboxylic acid functional groups on the anthracene ring alters photophysical properties to varying degrees depending on the location and protonation …
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Synthesis and Characterization of pure-phase Zr-MOFs Based on meso-Tetra(4-carboxyphenyl)porphine
… defectivity and modulator properties. Chapter 3: Singlet-singlet energy transfer in PCN-223(free-base), a highly stable Zr-MOF based on meso-tetrakis(4-carboxyphenyl)porphyrin was investigated, using diffuse reflectance spectroscopy, steady-state emission spectroscopy, time-correlated single …
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Design, synthesis and characterization of photocage molecules for light-activated release: Applications in polymer chemistry and phototherapeutics
… control over the release of substrates over time. But most of the available photocages absorbed in the UV light region and hence showed cytotoxicity and poor tissue penetration. Therefore, there was always the need for photocages that will absorb in the wavelength range of 600-1000 nm, also …
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New photonic imaging systems for biomedical applications
… depth, accuracy, and general usability. TCSPC with raster scanning technique is frequently used in PLIM, but it is slow as it requires long pixel dwell times to measure long-lived phosphorescence. Other commonly used techniques include gated CCD and CMOS cameras, which lack single photon …