High Resolution Photoionization Spectrum of HBr Measured With Frequency Tripled Laser Radiation

Akira Misu, Motowo Tsukakoshi, Tadahiko Mizukuki, Toshiaki Munakata, Takahiro Kasuya

doi:10.1155/lc.7.129

<jats:p>The photoionization spectrum of HBr around the first ionization limit was measured at resolution of up to 5 x 10<jats:sup>−4</jats:sup> nm. The ionizing vacuum ultraviolet radiation was generated by frequency tripling of the second harmonic output of a dye laser. Three sets of Rydberg series, each converging to the ground state (<jats:sup>2</jats:sup>Π<jats:sub>3/2</jats:sub>) of HBr<jats:sup>+</jats:sup>, were observed on the longer wavelength side of the ionization limit. By extrapolation of the Rydberg series, the ionization potential of HBr was determined to be 11.666 ± 0.001 eV.</jats:p>

High Resolution Photoionization Spectrum of HBr Measured With Frequency Tripled Laser Radiation

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