PM IRRAS

PM-IRRAS stands for Polarization Modulation Infrared Reflection-Absorption Spectroscopy. It is the differential IR absorption between the s- and p-linearly polarized light for the molecules adsorbed on a metal surface.

SETUP

• PEM setting: half-wave retardation (λ/2)
• Polarization modulation: between s-, and p- polarization
• Lock-in reference: PEM’s 2nd harmonic (2f)

APPLICATIONS

In surface science, analytical chemistry, biochemistry, and electrochemistry

PEMs

II/ZS50
II/ZS37

OEMs

Thermo Fisher
Bruker

FURTHER READING

W. G. Golden and D. D. Saperstein, “Fourier transform infrared reflection-absorption spectroscopy of surface species”, J. Elect. Spect. and Rel. Phen. 30, 43 (1983)

A. E. Dowrey and C. Marcott, Appl. Spectrosc.36, 414 (1982)

M. J. Green, B. J. Barner and R. M. Corn, “Real-time sampling electronics for double modulation experiments with Fourier transform infrared spectrometers”, Rev. Sci. Instru. 62, 1426 (1991)

D. Blaudez, T. Buffeteau, J.C. Cornut, B. Desbat, N. Escafre, M. Pezolet, and J.M. Turlet, “Polarization modulation FTIR spectroscopy at the air-water interface”, Thin Solid Films, 242, 146 (1994)

R. Mendelsohn, J.W. Brauner and A. Gericke, “External Infrared Reflection Absorption Spectrometry of Monolayer Films at the Air-Water Interface”, Annu. Rev. Phys. Chem. 46, 305 (1995)

Contact us to see how Hinds Instruments works with our customers to solve complex metrology problems.