RAMAN SPECTROSCOPY AND SERS Props to Wikipedia RAMAN

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RAMAN SPECTROSCOPY AND SERS Props to Wikipedia

RAMAN SPECTROSCOPY AND SERS Props to Wikipedia

RAMAN AND KRISHNAN – NEGATIVE ABSORPTION OF RADIATION Rayleigh scattering - The labeled elastic

RAMAN AND KRISHNAN – NEGATIVE ABSORPTION OF RADIATION Rayleigh scattering - The labeled elastic scatter spectrum IR spectrum - The difference from the arrowed spectral lines to the Rayleigh spectrum Raman - The combined rovibronic transition C. V. Raman, K. S. Krishnan (1928). ”The negative absorption of radiation”. Nature. Vol. 122. https: //doi. org/10. 1038/122012 b 0 Negative absorption - The negative difference to the Rayleigh spectrum

RAYLEIGH SCATTERING http: //www. thephysicsmill. com/blog/wp-content/uploads/rayleigh_scattering. png https: //i. pinimg. com/originals/91/63/99/916399 f 33 e

RAYLEIGH SCATTERING http: //www. thephysicsmill. com/blog/wp-content/uploads/rayleigh_scattering. png https: //i. pinimg. com/originals/91/63/99/916399 f 33 e 77 b 0406696 bd 524 a 737 ee 4. jpg https: //images. slideplayer. com/25/7810418/slides/slide_2. jpg Essentially, the absorption and emission of light of the same quanta. Virtual energy state since it is excited by perturbing the quantum state of the original system.

IR ABSORPTION https: //www. researchgate. net/profile/Mohammad_Jafari 17/publication/320780724/figure/fig 2/AS: 563138077696000@1511273988752/Possible-vibrational-modes-of-molecules. png https: //slideplayer. com/slide/4178834/14/images/40/Absorption+Spectrum+of+H 2

IR ABSORPTION https: //www. researchgate. net/profile/Mohammad_Jafari 17/publication/320780724/figure/fig 2/AS: 563138077696000@1511273988752/Possible-vibrational-modes-of-molecules. png https: //slideplayer. com/slide/4178834/14/images/40/Absorption+Spectrum+of+H 2 O. jpg V 1 symmetric stretching IR absorption spectra of H 2 OV 2 scissoring V 3 asymmetric stretching IR absorption occurs in molecules exhibiting permanent dipoles – rotational and vibrational modes.

RAMAN SCATTERING M. Ibrahim and H. He. (2017). Classification of polyethylene by Raman spectroscopy.

RAMAN SCATTERING M. Ibrahim and H. He. (2017). Classification of polyethylene by Raman spectroscopy. Thermoscientific Application note A https: //schoolbag. info/chemistry/organic. files/image 025. jpg

SERS S. Y. Ding et al. (2016). ”Nanostructure-based plasmon-enhanced Raman spectroscopy for surface analysis

SERS S. Y. Ding et al. (2016). ”Nanostructure-based plasmon-enhanced Raman spectroscopy for surface analysis of materials”. Nature Reviews. Vol. 1. ] J. -F. Li et al. (2017). “Core–shell nanoparticle-enhanced Raman spectroscopy“. Chem. Rev. Vol. 117. Substrate near field enhancement of the incident light Raman-resonance Far field enhancement

FINAL REPORT H. J. Butler et al. (2016). ”Using Raman spectroscopy to characterize biological

FINAL REPORT H. J. Butler et al. (2016). ”Using Raman spectroscopy to characterize biological materials”. Nature Protocols. Vol. 11. 036 Instrumentation Protocol

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