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Espalhamento Raman. Introdução. Espalhamento de luz. http://www.andor.com/learn/applications/?docid=64. Modificação na freqüência. Freqüência característica do material. Freqüência incidente. Freqüência modificada. Espectro.

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Espalhamento raman l.jpg

Espalhamento Raman

Introdução


Espalhamento de luz l.jpg
Espalhamento de luz

http://www.andor.com/learn/applications/?docid=64


Modifica o na freq ncia l.jpg
Modificação na freqüência

Freqüência

característica

do material

Freqüência

incidente

Freqüência

modificada


Espectro l.jpg
Espectro

http://commons.wikimedia.org/wiki/File:Raman_spectra_of_drugs.jpg


Slide6 l.jpg

2TO(X)

2TO(W)

2TO(L)

Ac & opt. in S

2TA(X)


Os dois lados da moeda l.jpg
Os dois lados da moeda

http://www.smartec.ch/images/Scattering_spectra.gif



Montagem experimental t pica l.jpg
Montagem experimental típica

http://www.andor.com/learn/applications/?docid=64



Montagem experimental11 l.jpg
Montagem experimental

http://spectra.phy.bris.ac.uk/Media/InVia%20anime.gif


Modelo do oscilador harm nico l.jpg
Modelo do oscilador harmônico

http://131.104.156.23/Lectures/CHEM_207/vibrational_spectroscopy




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Modos normais de vibração

Representation of two normal modes of benzene

http://mvl.chem.tu-berlin.de/ak_hildebrandt/hildebrandt/methods/VibrationalSpectroscopy.html


Plasm nica aplicada sers l.jpg
Plasmônica aplicada: SERS

Surface Enhanced Raman Scattering

http://www.ipht-jena.de/uploads/pics/sers-schema_425_03.jpg


Vencendo a difra o l.jpg
Vencendo a difração

Nanotubos de carbono


Sofistica es ters l.jpg
Sofisticações: TERS

Tip Enhanced Raman Scattering

http://spie.org/Images/Graphics/Newsroom/Imported/426/426_fig2.jpg


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Coherent Anti-Stokes Raman Scattering (CARS)

http://en.wikipedia.org/wiki/File:CARS_diagram.png



Transi es pticas l.jpg
Transições ópticas

http://hyperphysics.phy-astr.gsu.edu/HBASE/molecule/molec.html#c2


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Raman optical activity (ROA)

Hen Lysozyme

http://www.chem.gla.ac.uk/staff/laurence/recent_roa_talk.ppt#259,13,Hen Lysozyme


Aplica es l.jpg
Aplicações

Raman diagnostic tool detects eye disease

MEDICAL SPECTROSCOPY

http://www.laserfocusworld.com/display_article/119897/12/none/none/News/Raman-diagnostic-tool-detects-eye-disease


Aplica es24 l.jpg
Aplicações

Raman studies may help predict bone fracture

SPECTROSCOPY

http://www.laserfocusworld.com/display_article/101870/12/none/none/News/Raman-studies-may-help-predict-bone-fracture


Aplica es25 l.jpg
Aplicações

Raman scattering reveals macular pigment levels

MEDICAL SENSING

http://www.laserfocusworld.com/


Aplica es26 l.jpg
Aplicações

Raman Spectrometer Probes the Deep

More than two miles below the surface, a curious Pacific grenadier watches the Deep-Ocean Raman In Situ Spectrometer interrogate a pool of liquid CO2 on the sea floor. Courtesy of Peter G. Brewer.

http://www.photonics.com/Content/ReadArticle.aspx?ArticleID=18402


Aplica es27 l.jpg
Aplicações

Mobile Raman Targets Chemical Spills

Researchers at Brookhaven National Laboratory have developed a mobile Raman spectroscopy system to remotely assess unknown chemical spills in emergency situations. The system uses 266-nm Raman lidar to target samples more than 1700 feet away.

http://www.photonics.com/Content/ReadArticle.aspx?ArticleID=8282


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