Simple spectroscopic control of a β-barium borate optical parametric oscillator is achieved by seeding at its visible signal wavelength with light from a tunable pulsed dye laser. This yields continuously tunable narrowband infrared output at the corresponding idler wavelength. The spectroscopic potential of this device is demonstrated by recording photoacoustic spectra of the near-infrared (ν1+2ν3+ν5 1) band of acetylene gas.
|Number of pages||3|
|Journal||Applied Physics Letters|
|Publication status||Published - Jan 1991|