Three-level Doppler-free two- and three-photon resonances

Schmidt-Iglesias, C.; Corbalán, R.

doi:10.1007/bf02450554

Cited by 1 publication

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore a basic view of their respective influence could be: the wave that comes on the gold layer is either damped by the absorption of chromium or evanescent for the MPTMS. Consequently the configuration of SPR is closer to that proposed by Otto than that proposed by Kretschmann [17]. On the contrary, with TiO 2 or Cr 2 O 3 adhesion layers, the Kretschmann configuration is preserved.…”

Section: Comparison Of the Influence Of Adhesion Layerssupporting

confidence: 60%

“…A dielectric substrate of refractive index larger than that (n 2 ) of the medium of MB molecules is required. The layer of refractive index n 2 is larger than the adhesion layer to reach optimum of SPR signal [17], and n 1 2 = or n 2 = 1.33. The corresponding thickness of gold also is larger than a few hundred nanometers, and therefore the adhesion layer can be neglected.…”

Section: Optimization Of the Sers Gainmentioning

confidence: 99%

See 1 more Smart Citation

Combined SPR and SERS: Otto and Kretschmann configurations

Barchiesi

Grosges

Colas

et al. 2015

J. Opt.

View full text Add to dashboard Cite

Combined surface enhanced Raman spectroscopy (SERS) and surface plasmon resonance (SPR) setup was proposed recently. The experimental setup requires a gold layer deposited on a glass substrate. However, due to the poor ability of sticking gold material on glass, a nanometric adhesion layer is used. In this paper we compare numerically both the SERS gain, and the SPR signal, for metallic and dielectric adhesion layers, for two substrates. We show that even if the dielectric materials can be considered as equivalent for the SPR signal, this is not the case for the SERS gain. In particular the dielectric adhesion layer reduces the sensitivity of the SERS gain to this parameter and therefore their use could be more suitable for the fabrication of the sensor. Moreover the higher the refractive index of substrate with regards to the adhesion layer is, the higher efficiency of setup is obtained, and therefore the Otto configuration seems to be more efficient than the Kretschmann one. Optimization of the thicknesses of the adhesion layer and of the gold layer can lead to a SERS gain greater than 10 3 without nanostructuring.

show abstract

Section: Comparison Of the Influence Of Adhesion Layerssupporting

confidence: 60%

Section: Optimization Of the Sers Gainmentioning

confidence: 99%