نتایج جستجو برای: raman spectrum
تعداد نتایج: 256423 فیلتر نتایج به سال:
Sarah A. Tedder , Jeffrey L. Wheeler, and Paul M. Danehy Advanced Sensing and Optical Measurement Branch, NASA Langley Research Center, 18 Langley Boulevard, Hampton, Virginia 23681-2199, USA Department of Physics, The College of William & Mary, P.O. Box 8795, Williamsburg, Virginia, 23187-8795, USA Whitworth University, 300 W. Hawthorne Road, Spokane, Washington, 99251-2515, USA Corresponding ...
We observe unique dynamics of Raman soliton during supercontinuum process when an input pulse experiences initially normal group-velocity dispersion with a negative dispersion slope. In this situation, the blue components of the spectrum form a Raman soliton that moves faster than the input pulse and eventually decelerates because of Raman-induced frequency downshifting. In the time domain, the...
T. M. G. Mohiuddin,1 A. Lombardo,2 R. R. Nair,1 A. Bonetti,2 G. Savini,2 R. Jalil,1 N. Bonini,3 D. M. Basko,4 C. Galiotis,5 N. Marzari,3 K. S. Novoselov,1 A. K. Geim,1 and A. C. Ferrari2,* 1School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL,United Kingdom 2Department of Engineering, Cambridge University, Cambridge, CB3 0FA, United Kingdom 3Department of ...
Overview: Raman spectroscopy is ideally suited for planetary exploration, because Raman spectra provide detailed molecular and structural information, very useful for geochemical measurements as well as to measure organic and inorganic biomarkers in the search for past or present life on other planets [1]. Raman scattering, a very weak process, can be relatively strong at deep UV wavelengths be...
UV Resonance Raman Spectroscopy Using a New cw Laser Source: Convenience and Experimental Simplicity
S A N F O R D A. ASHER,* R I C H A R D W. B O R M E T T , X. G. C H E N , D O N A L D H. L E M M O N , N A M J U N CHO, P E T E P E T E R S O N , M A R C O A R R I G O N I , L U I S S P I N E L L I , a n d J E F F C A N N O N Department o/Chemistry, University o/Pittsburgh, Pittsburgh, Pennsylvania 15260 (S.A.A., R.W.B., X.G.C., D.H.L., N.C.); and Coherent Laser Group, Division of Coherent Inc....
Modified indirect hard modeling for non-invasive Raman measurements containing surface interference.
Non-invasive Raman spectroscopy has been used in an increasing number of applications in recent years. However, in situations where surface signal is excessive, the acquired spectrum of probed sample suffers from surface interference in either conventional backscattering Raman or specially designed Raman methods. A computational method for Raman spectral recovery is required. Strong overlapp...
The fractionalization of elementary excitations in quantum spin systems is a central theme in current condensed matter physics. The Kitaev honeycomb spin model provides a prominent example of exotic fractionalized quasiparticles, composed of itinerant Majorana fermions and gapped gauge fluxes. However, identification of the Majorana fermions in a three-dimensional honeycomb lattice remains elus...
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