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3 edition of Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow found in the catalog.

Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow

Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C, Springfield, Va .
Written in English

    Subjects:
  • Flow measurement.,
  • Temperature measurement.,
  • Density measurement.,
  • Velocity measurement.,
  • Rayleigh scattering.

  • Edition Notes

    Other titlesSingle shot spectrally resolved UV Rayleigh scattering measurements in high speed flow.
    StatementRichard G. Seasholtz.
    SeriesNASA technical memorandum -- 170323.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL18118704M

    Search the leading research in optics and photonics applied research from SPIE journals, conference proceedings and presentations, and eBooks. High-speed imaging is an indispensable tool for blur-free observation and monitoring of fast transient dynamics in today’s scientific research, industry, defense, and energy. The field of high-speed imaging has steadily grown since Eadweard Muybridge demonstrated motion-picture photography in Label-Free Super-Resolution Microscopy () | Book Chapter Abstract Interferometric scattering (iSCAT) microscopy is a powerful tool for label-free sensitive detection and imaging of nanoparticles to high spatiotemporal resolution. book of abstracts Italian National Conference on Materials Science and Technology Catania, December 12 - 16, Conference Chairs Corrado Spinella (DSFTM - CNR) Luigi Ambrosio (DSCTM - CNR) BOOK OF ABSTRACTS 2 Conference Chairs • Corrado Spinella (CNR) • Luigi Ambrosio (CNR) Scientific Committee • Lidia Armelao (CNR) • Andrea Caneschi (INSTM) • .


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Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow Download PDF EPUB FB2

Single-Shot Spectrally Resolved UV Rayleigh Scattering Measurements in High Speed Flow Richard G. Seasholtz Lewis Research Center Cleveland, Ohio Prepared for the Eighth Intemational Symposium on Applications of Laser Techniques to Fluid Mechanics sponsored by the Instituto Superior T6cnico Lisbon, Portugal, JulyNational Aeronautics and.

Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: Richard G Seasholtz; Lewis Research Center.

Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow (OCoLC) Material Type: Government publication, National government publication, Internet resource: Document Type: Book, Internet Resource: All Authors / Contributors: Richard G Seasholtz; Lewis Research Center.

The flow fields of unheated, supersonic free jets from convergent and convergent-divergent nozzles operating at M =, and were measured. Seasholtz RG () Single-shot spectrally resolved UV Rayleigh scattering measurements in high-speed flow. NASA TM, 8th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, PortugalCited by: 6.

Mean and Fluctuating Property Measurements with Filtered Angularly Resolved Rayleigh Scattering Article in AIAA Journal 49(10) October with 9. An example of a filtered Rayleigh scattering measurement is shown in Fig.

Filtered Rayleigh scattering has become an important tool in order to pursue two-dimensional measurements in reaction flows, close to surfaces (~ µm) and has even been applied in. How to cite this article: Zhuang, H.

et al. High speed color imaging through scattering media with a large field of view. Sci. Rep. 6, ; doi: /srep ().Cited by: High repetition rate lasers and high-speed cameras can also be used for time-resolved measurements (high-speed PIV, see for example the review of Böhm et al.

for applications in turbulent combustion). Here, high repetition/sampling rates refers to the multi-kHz range, especially important for turbulent gas flows where 1–10 Hz sampling rates Cited by: A comprehensive experimental analysis needs therefore measurements of flow and scalar fields.

velocity, and temperature in turbulent high-speed air flows by UV Rayleigh scattering, Appl. Phys. B 51, 1–7 () Google Raman line imaging for spatially and spectrally resolved mole fraction measurements in internal combustion engines.

Going beyond MHz-rate FRS flow visualizations and single-shot velocity measurements, Thurow et al. have utilized a Nd:YAG pulse-burst laser (described previously) to obtain temporally resolved FRS velocimetry (or PDV) measurements from condensation particles in the Rayleigh regime.

They used two high-speed CCD cameras at framing rates of Cited by: Single-shot time resolved Coherent Anti-Stokes Raman Scattering (CARS) is presented as a viable method for fast measurements of molecular spectra. The method is based on the short spatial extension of femtosecond pulses and maps time delays between pulses onto the region of intersection between broad beams.

The image of the emitted CARS signal contains full. A novel high-speed imaging system capable of acquiring PLIF and elastic scattering images in a near-simultaneous fashion has been developed. A custom high-speed laser provided a nm beam that was used for elastic scattering and a nm beam that was used for LIF by:   We obtain single-shot time-resolved shadowgraph images of the electromagnetic fields resulting from the interaction of a high intensity ultrashort laser pulse with a metal surface.

Using a high brightness relativistic electron beam and a high streaking speed radiofrequency deflector, we report Cited by: Cross-correlation frequency-resolved optical gating with an angle-dithered nonlinear-optical crystal permits measurement of the intensity and the phase of the ultrabroadband (as much as nm wide) continuum generated from microstructure optical fiber.

Retrieval revealed fine-scale structure in the continuum spectrum. Simulations and single-shot spectrum. Unlike LIF, spontaneous Raman scattering (SRS) measurements in high pressure plasmas are not affected by quenching, the signal is proportional to the flow density, and multiple species (such as N 2 and O 2) can be probed at the same time.

SRS measurements in large-scale wind tunnels also have an advantage compared to CARS measurements since Cited by: Proc.

SPIEOptical Measurement Systems for Industrial Inspection IX, (22 June ); doi: / Proc. SPIEOptical Measurement Systems for Industrial Inspection XI, (8 August ); doi: / hidden behind scattering layers can be retrieved from the autocorrelation of a single high‐resolution scattered light image, captured by a standard camera, via iterative phase‐retrieval algorithms [16, 17].

The single‐shot technique benefits from a short acquisition time, which makes it possible to realize real ‐time by: Time Integrated Measurements Measurements of spectral emission are typically collected as time integrated, spectrally resolved or as spectral ly integra ted temporally resolved signals It has been shown by Carranza et.

that while iCCD cameras provide significantly more gain on the signal, CCD detectors provided a greater signal to noise. Title: Single-shot diffraction-limited imaging through scattering layers via bispectrum analysis. Authors: Tengfei Wu, Ori Katz, Xiaopeng Shao, Sylvain Gigan (Submitted on 18 Aug ) Abstract: Recently introduced speckle-correlations based techniques enable noninvasive imaging of objects hidden behind scattering layers.

In these techniques Cited by: Recent developments in high speed imaging and applications in speckle light Author(s): A single shot shearography device for simultaneous measurement in three shearing directions analysis of the agreement between scalar finite element simulation and pulsed TV-holography detection of the scattering of Rayleigh-Lamb waves in plates.

Inelastic X-ray scattering (IXS) is an important tool for studies of equilibrium dynamics in condensed matter. A new spectrometer recently proposed for ultra-high-resolution IXS (UHRIX) has achieved meV and nm −1 spectral and momentum-transfer resolutions, respectively. However, further improvements down to meV and nm −1 are required to Cited by: 4.

It has been used to measure the time history of broadband and spectrally resolved x-ray emission at a Hz repetition rate from an ultrashort-pulse-laser-produced plasma.

Accumulation of the streaked x-ray signals significantly improved the signal-to-noise ratio of the data obtained and permitted experiments with relatively low x-ray yield to. High-speed, single-shot velocity-map imaging (VMI) is combined with carrier-envelope phase (CEP) tagging by a single-shot stereographic above-threshold ionization (ATI) phase-meter.

The experimental setup provides a versatile tool for angle-resolved studies of the attosecond control of electrons in atoms, molecules, and nanostructures. Single-shot VMI at kHz repetition rate is Cited by: Lidar: Range-Resolved Optical Remote Sensing of the Atmosphere Claus Weitkamp Written by leading experts in the field of Lidar, this book brings allthe recent applications and.

The extended multiplicative signal correction (EMSC) preprocessing method allows a separation of physical light-scattering effects from chemical (vibrational) light absorbance effects in spectra from, for example, powders or turbid solutions.

It is here applied to diffuse near infrared transmission (NIT) spectra of mixtures of wheat gluten (protein) and starch (carbohydrate). The method makes single-shot imaging temperature measurements feasible in principle.

This necessitates the use of two lasers having well-controlled bandwidths. (Since our original intention was to make single-shot imaging temperature measurements, two pulsed dye lasers tuned to and nm, respectively, were used in parallel.

The first step is to remove the non-homogeneous spatial intensity distribution. As this contribution is stable, dividing the measurement of pulse 1 (left image in the figure 2) by the one obtained for pulse 2 (center image in the figure 2) results in a normalization of the spatial inhomogeneity's, what will be denoted from now on as the primary by: showed that the non-resonant inelastic X-ray scattering channel must be taken into account to describe the polariza-tion dependence of the vibrationally resolved spectra of O 2 (see Fig.

2) (Sun et al., ). The investigation of these fundamental aspects of the scattering process in small molecules is important for further. the keV spectral range. Time-resolved Thomson scattering measured the electronic density and temperature, and the rear-face self-emission diagnostic measured the shock speed.

These hydrodynamic measurements allow to constrain the 1-D MULTI hydrocode. The atomic physics code FLYCHK is then used as a post. High-throughput single-shot hyperspectral interferometer for areal profilometry based on microlens array integral field unit Paper Time: PM - PM.

For more details, the reader is referred to the relevant books, book chapters, and reviews [1–3, 5–7]. Attention will be paid to possible artifacts. A list of lifetime standards is also given. Time-resolved fluorescence anisotropy measurements will not be discussed here, because they are described in a separate IUPAC Technical Report [8].Cited by: Full text of "OM85 basic properties of optical materials" See other formats.

High throughput of industrial processes drives the demand for even higher laser average power. Shorter, subps pulses increase the ablation efficiency and etch (material removal) rate for some materials (e.g.

steel) [2]. In this work, we present the state-of-the-art > W fs laser system, which is ideally suited for high speed surface. Rayleigh Scattering. ERIC Educational Resources Information Center.

Young, Andrew T. The correct usage of such terminology as. Wei, Lu () High-sensitivity stimulated Raman imaging with chemical tags (Conference Presentation). In: High-Speed Biomedical Imaging and Spectroscopy V.

Proceedings of SPIE. No Society of Photo-optical Instrumentation Engineers (SPIE), Bellingham, WA, Art. ISBN The system is capable of printing large complex components with high resolution features at a high speed, and at a lower cost that current micro-scale 3D printing systems.

Background:Over the past few decades, there has been an increasing interest in the fabrication of complex high-resolution 3D parts, using additive manufacturing processes. High-speed single-shot optical focusing through dynamic turbid media (Conference Presentation) Ashton Hemphill, Yuecheng Shen, Yan Liu, Lihong Wang Proc.

SPIE.Adaptive Optics and Wavefront Control for Biological Systems IV. Single-shot implementation of dispersion-scan for the characterization of ultrashort laser pulses Opt.

23, (). High-average-power 2 µm few-cycle optical parametric chirped pulse amplifier at kHz repetition rate Opt. Lett. 40, (). Full text of "Pallett Aircraft Electrical Systems" See other formats.A high-speed one-dimensional detector for time-resolved small-angle x-ray scattering has been designed and built for experiments at the Advanced Photon Source of Argonne National Laboratory.

This detector is made from a mu m thick by mm diameter ultra-high-purity n-type silicon wafer. The electrodes, which are a series of concentric rings.Measurements of lattice parameters and Rietveld refinement of the XRD spectra, indicate that Dy and Yb are incorporated substitutionally in SrMnO$_{3}$.

Temperature dependent magnetic measurements, on the other hand, reveal a common transition temperature around 41 K for both Dy and Yb doped SrMnO$_{3}$.