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
high resolution spectroscopy, optical parametric oscillator, photodissociation dynamics
, Fair, J.
, Plusquellic, D.
, Riedle, E.
and Nesbitt, D.
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 December 9, 2023)