Siltanen Mikael, Vainio Markku, Halonen Lauri
Laboratory of Physical Chemistry, Department of Chemistry, (A.I. Virtasen aukio 1), University of Helsinki, Finland.
Opt Express. 2010 Jun 21;18(13):14087-92. doi: 10.1364/OE.18.014087.
We report a continuous-wave singly resonant optical parametric oscillator pumped by a widely tunable titanium-doped sapphire ring laser. It produces up to 0.8 W of mid-infrared power. The wavelength can be tuned in a few seconds from 2.5 to 3.5 microm or from 3.4 to 4.4 microm and scanned up to 40 GHz without mode-hops by only changing the pump beam wavelength. Spectroscopic capability is demonstrated by measuring parts of the photoacoustic absorption spectrum of NH(3) near 3196 cm(-1).
我们报道了一种由宽可调谐掺钛蓝宝石环形激光器泵浦的连续波单共振光学参量振荡器。它产生高达0.8瓦的中红外功率。仅通过改变泵浦光束波长，波长可在几秒钟内从2.5微米调谐到3.5微米，或从3.4微米调谐到4.4微米，并可在无模式跳变的情况下扫描高达40吉赫兹。通过测量NH(3)在3196厘米(-1)附近的部分光声吸收光谱，展示了其光谱能力。
