Measurement of Optical Excitations in Low-Dimensional Materials by Using a Monochromated Electron Source
Sign Up to like & getrecommendations! Published in 2018 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927618008358
Abstract: Optical properties of low-dimensional materials are strongly governed by excitons and their interactions with defects. For instance, non-radiative exciton decays in carbon nanotubes are presumably happened at defects and result in the low luminescence quantum… read more here.
Keywords: optical excitations; dimensional materials; low dimensional; spectroscopy ... See more keywords
Direct Photothermal Measurement of Optical Absorption in a Flow System.
Sign Up to like & getrecommendations! Published in 2019 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.8b05091
Abstract: We describe here a simple photothermal detection scheme in a flow stream based on the temperature difference upstream and downstream of the point of illumination. We use a single, two-junction 25 μm diameter thermocouple to… read more here.
Keywords: optical absorption; detection; photothermal measurement; direct photothermal ... See more keywords
Absolute frequency measurement of a Yb optical clock at the limit of the Cs fountain
Sign Up to like & getrecommendations! Published in 2022 at "Metrologia"
DOI: 10.1088/1681-7575/accbc5
Abstract: We present the new absolute frequency measurement of ytterbium (171Yb) obtained at INRiM with the optical lattice clock IT-Yb1 against the cryogenic caesium (133Cs) fountain IT-CsF2, evaluated through a measurement campaign that lasted 14 months.… read more here.
Keywords: frequency; absolute frequency; measurement optical; frequency measurement ... See more keywords
High-Accuracy and Fast Measurement of Optical Transfer Delay
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2020.3011585
Abstract: Measurement of optical transfer delay (OTD) is crucial to applications such as fiber-distributed multiantenna systems, fiber-optic sensors, and high-capacity optical fiber communications. However, present OTD measurement techniques are inadequate for the demands of high accuracy,… read more here.
Keywords: optical transfer; accuracy; measurement optical; delay ... See more keywords
Low-coherence interferometry for phase-sensitive measurement of optical rotation.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.005893
Abstract: We present phase-sensitive measurement of optical rotation using spectral-domain and time-domain low-coherence interferometry. The method utilizes two decorrelated polarization states and simultaneous dual-channel detection provided by polarization-maintaining fiber-based implementation. The sample is placed between polarization… read more here.
Keywords: low coherence; rotation; optical rotation; phase sensitive ... See more keywords
IBIL Measurement and Optical Simulation of the DI Center in 4H-SiC
Sign Up to like & getrecommendations! Published in 2023 at "Materials"
DOI: 10.3390/ma16072935
Abstract: In this paper, DI defects are studied via experiments and calculations. The 2 MeV H+ is used to carry on an ion-beam-induced luminescence (IBIL) experiment to measure the in-situ luminescence of untreated and annealed 4H-SiC… read more here.
Keywords: center sic; ibil measurement; simulation center; optical simulation ... See more keywords