Abstract
A reliable source of coherent ns pulses of infrared radiation continuously tunable between 1.4 and 22 μm has been designed and built with the aim of developing a time-resolved infrared vibrational spectroscopy for species adsorbed on surfaces. The system is based on a Nd: YAG-laser and dye-laser combination which drive difference mixing processes in a sequence of nonlinear optical crystals (two LiNbO3, and a CdSe or AgGaS2). The system operates at MW peak power levels above 2500 cm−1, at kW power levels from 1000–2500 cm−1 and at 10–100 W levels down to 450 cm−1. These power levels are certainly sufficient for spectroscopic purposes, and at shorter wavelengths molecular pumping and applications requiring high-power should be possible. Vibrational spectra of a monolayer of CO adsorbed on Pt in an electrochemical cell have been obtained in an initial application of this source.
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References
C.R. Brundle, H. Morawitz (eds.):Vibrations at Surfaces (Elsevier, New York 1983)
Y.R. Shen (ed.):Nonlinear Infrared Generation, Topics Appl. Phys.16 (Springer, Berlin, Heidelberg 1977)
B.D. Guenther, R.G. Buser: IEEE J. QE-18, 1179–1185 (1982)
K. Kato: IEEE J. QE-16, 1017–1018 (1980)
K. Kato: IEEE J. QE-20, 698–699 (1984)
K. Kato: IEEE J. QE-21, 119–120 (1985)
J.J. Jacob: SPIE Proc.461, 11–13 (1984)
Ph. Kupecek, H. Le Person, M. Comte: Infrared Phys.19, 263–271 (1979)
J.L. Oudar, Ph.J. Kupecek, D.S. Chemla. Opt. Commun.29, 119–122 (1979)
An overview of this field may be found in D.C. Hanna, M.A. Yuratich, D. Cotter:Nonlinear Optics of Free Atoms and Molecules, Springer Ser. Opt. Sci.17 (Springer, Berlin, Heidelberg 1979)
R. Wyatt, D. Cotter: Opt. Commun.37, 421–425 (1981)
R. Wyatt, D. Cotter: Appl. Phys.21, 199–204 (1980)
A.L. Harris, J.K. Harris, M. Berg, C.B. Harris: Opt. Lett.9, 47–49 (1984)
D.S. Bethune, A.J. Schell-Sorokin, M.M.T. Loy, J.R. Lankard, P.P. Sorokin: InAdvances in Laser Spectroscopy, Vol.2, ed. by B.A. Garetz, J.R. Lombardi (Wiley, New York 1983) pp. 1–43
W. Hartig, W. Schmidt: Appl. Phys.18, 235–241 (1979)
T. Elsaesser, A. Seilmeier, W. Kaiser: Opt. Commun.44, 293–296 (1983)
F. Wondrazek, A. Seilmeier, W. Kaiser: Appl. Phys. B32, 39–42 (1983)
T. Elsaesser, A. Seilmeier, W. Kaiser, P. Koidl, G. Brandt: Appl. Phys. Lett.44, 383–385 (1984)
S.J. Brosnan, R.L. Byer: IEEE J. QE-15, 415–431 (1979)
R.A. Baumgartner, R.L. Byer: IEEE J. QE-15, 432–444 (1979)
K. Kato: IEEE J. QE-18, 451–452 (1982)
S.J. Brosnan, R.N. Fleming, R.C. Herbst, R.L. Byer: Appl. Phys. Lett.30, 330–332 (1977)
A. Bianchi, A. Ferrario: Optica Acta27, 1077–1085 (1980)
R.L. Byer, M.M. Choy, R.L. Herbst, D.S. Chemla, R.S. Feigelson: Appl, Phys. Lett.24, 65–68 (1974)
D.C. Hanna, B. Luther-Davies, R.C. Smith, R. Wyatt: Appl. Phys. Lett.25, 142–144 (1974)
Index data for phase matching calculations are given for LiNbO3 by D.S. Smith, H.D. Riccius, R.P. Edwin: Opt. Commun.17, 332–335 (1976); for AgGaS2 by G.C. Bhar and R.C. Smith: IEEE J. QE-10, 546–550 (1974); and for CdSe by G.C. Bhar, D.C. Hanna, B. Luther-Davies, R.C. Smith: Opt. Commun.6, 323–326 (1972)
D.S. Bethune, A.C. Luntz, J.K. Sass, D.K. Roe: To be published
H.J. Krebs, H. Lüth: Appl. Phys.14, 337–342 (1977)