Results 121 to 130 of about 369,402 (159)

Stain Effects Studied by Time-Resolved Infrared Imaging

Analytical Chemistry, 2008
Pattern formation in evaporating colloidal droplets is an important phenomenon that is commonly observed in several solute-solvent systems; this is also an emerging technique for obtaining fine patterning through controlled conditions of drying. After evaporation of the solvent a ring-like pattern remains on the solid substrate under the condition of ...
Innocenzi, P., Malfatti, L., Piccinini, M., Grosso, D., Marcelli, A.   +4 more
openaire   +4 more sources

Time-resolved spectral imaging: better photon economy, higher accuracy

SPIE Proceedings, 2015
Lifetime and spectral imaging are complementary techniques that offer a non-invasive solution for monitoring metabolic processes, identifying biochemical compounds, and characterizing their interactions in biological tissues, among other tasks. Newly developed instruments that perform time-resolved spectral imaging can provide even more information and
Fereidouni, Farzad, Reitsma, Keimpe, Blab, Gerhard A., Gerritsen, Hans C.   +3 more
openaire   +2 more sources

Time resolved imaging at 130 Å with submicron resolution

Applied Optics, 1991
A novel and simple XUV imaging technique using a laser-produced plasma source is described. A spatial resolution of better than 0.8 mum is demonstrated.
M, Desselberger, T, Afshar-Rad, F, Khattak, S, Viana, O, Willi   +4 more
openaire   +2 more sources

High speed time-resolving imaging

Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464), 2003
In order to obtain a high depth resolution, not only the use of a fast shutter, but also the use of a fast modulated chirped pulse is necessary. A chirped pulse of wide spectrum range is necessary, therefore a wide band shutter is also needed. Shutters faster than CS/sub 2/ were realized using other materials such as glasses or organic dyes. We applied
H. Matsumoto, K. Minoshima
openaire   +1 more source

Time-Resolved Multispectral Imaging Spectrometer

Applied Spectroscopy, 2000
A new multispectral imaging spectrometer with millisecond resolution has been developed. This instrument is based on the use of an acousto-optic tunable filter (AOTF) for spectral tuning and a simple progressive scan camera capable of snapshot operation for recording.
Oleg Khait, Sergev Smirnov, Chieu D. Tran   +2 more
openaire   +1 more source

Time resolved particle image velocimetry

Optics and Lasers in Engineering, 1988
Abstract The temporal evolution of the velocity field of an unsteady fluid flow can be tracked by combining Particle Image Velocimetry (PIV) and high speed photography. Two alternative techniques for PIV are discussed: the classical light sheet technique and a method which makes use of the light scattered in forward direction.
Alfred Vogel, Werner Lauterborn
openaire   +1 more source

Time-Resolved Imaging Of Transient Plasma

AIP Conference Proceedings, 2009
Pulsed capillary discharge is a compact device that is used to perform fast electrical discharge that is used to produce transient plasma. In this work, a more economical imaging technique is developed in order to study the dynamics of the plasma that is formed in a capillary tube.
L. S. Chan, C. S. Wong, S. L. Yap, J. Singh, Z. Ahmad, Swee-Ping Chia, Kurunathan Ratnavelu, Muhamad Rasat Muhamad   +7 more
openaire   +1 more source

Computational time-resolved imaging.

2015
Classical photography uses steady-state illumination and light sensing with focusing optics to capture scene reflectivity as images; temporal variations of the light field are not exploited. This thesis explores the use of time-varying optical illumination and time-resolved sensing along with signal modeling and computational reconstruction.
openaire   +1 more source

Time-Resolved Imaging in Diffusive Media

2017
The medical use of light to probe deep tissues dates back to the 19th century, beginning with Bright’s 1831 report on hydrocephalus. Bright noted that sunlight or light from a candle was able to shine through the head of a patient who suffered from hydrocephalus, a disorder characterized by excess cerebrospinal fluid in and around the brain.
Heidrun Wabnitz, Juan Rodriguez, Ilya Yaroslavsky, Anna Yaroslavsky, Valery V. Tuchin   +4 more
openaire   +1 more source

Time-resolved molecular imaging

Journal of Physics B: Atomic, Molecular and Optical Physics, 2016
Junliang Xu, Cosmin I Blaga, Pierre Agostini, Louis F DiMauro   +3 more
openaire   +1 more source