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High Resolution Vibrational Overtone Studies of HOD and H2O With Single Mode, Injection Seeded Ring Optical Parametric Oscillators



O Votava, J R. Fair, David F. Plusquellic, E Riedle, David Nesbitt


sign, performance, and applications of a pulsed, single mode optical parametric oscillator (OPO) for studies of high resolution spectroscopy and photodissociation dynamics are presented. Single mode operation is achieved by resonantly seeding a four-mirror OPO ring cavity with a tunable, continuous wave (cw) ring dye laser, providing continuous scanning capability at near Fourier transform limited resolution [δŅ=160(20) MHZ] with peak output energies greater then or equal to} 10 mJ. The high spectral brightness of this OPO light source is sufficient to saturate δŅ = 3 stretching transitions in OH, NH, and CH vibrational manifolds, which makes feasible quantum state-selected multiple resonance spectroscopies at 0.005 cm-1 resolution. The capability of this single mode OPO is explicitly demonstrated via (i) ŅOH = 3 <-O overtone spectroscopy of HOD, (ii) near-IR optical saturation studies of H2O in the l03-> overtone vibrational manifold (iii) high resolution LIF Dopplerimetry of OH radicals, and (iv) IR/UV multiple resonance spectroscopy of Ar-H2O molecular clusters.
Journal of Chemical Physics
No. 21


high resolution spectroscopy, optical parametric oscillator, photodissociation dynamics


Votava, O. , Fair, J. , Plusquellic, D. , Riedle, E. and Nesbitt, D. (1997), High Resolution Vibrational Overtone Studies of HOD and H<sub>2</sub>O With Single Mode, Injection Seeded Ring Optical Parametric Oscillators, Journal of Chemical Physics (Accessed June 15, 2024)


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Created November 30, 1997, Updated October 12, 2021