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  1. No Access

    Article

    DCOOD optically pumped by a 13CO2 laser: new terahertz laser lines

    In this work we report on new optically pumped THz laser lines from deuterated formic acid (DCOOD). An isotopic 13CO2 laser was used for the first time as a pump source for this molecule, and a Fabry–Perot cavity...

    R.C. Viscovini, J.C.S. Moraes, L.F.L. Costa, F.C. Cruz, D. Pereira in Applied Physics B (2008)

  2. No Access

    Article

    CH3OH optically pumped by a 13CO2 laser: new laser lines and assignments

    We report 12 new THz (far-infrared) laser lines from methanol (CH3OH), ranging from 58.1 μm (5.2 THz) to 624.6 μm (0.5 THz). A 13CO2 laser of wide tunability (110 MHz) has been used for optical pum**, allowing ...

    L.F.L. Costa, J.C.S. Moraes, F.C. Cruz, R.C. Viscovini, D. Pereira in Applied Physics B (2007)

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    Article

    Infrared Optoacoustic Spectroscopy of CHD2OH Around 10R and 10P CO2 Laser Lines

    In this work we present results of an investigation on Doppler limited infrared absorbing transitions of CHD2OH by optoacoustic detection. It is an alternative and attractive technique to be applied to this metha...

    R. C. Viscovini, F. C. Cruz, A. Scalabrin… in International Journal of Infrared and Mill… (2004)

  4. No Access

    Article

    Frequency Stabilization of Waveguide CO2 Laser by a Digital Technique

    In this work we present a simple technique for laser frequency stabilization, based on Digital signal processing. The technique is used to stabilize a waveguide CO2 laser of wide tunability by using three kinds o...

    R. C. Viscovini, F. C. Cruz, E. M. Telles… in International Journal of Infrared and Mill… (2001)

  5. No Access

    Article

    Vibrational and Rotational Spectroscopy of 13CD3OD

    We have used Fourier Transform spectral data on the C-O stretching mode of 13CD3OD in order to perform a vibro-rotational analysis for this molecule. We have estimated a few molecular parameters of the ground and...

    R. C. Viscovini, F. C. Cruz, J. C. S. Moraes… in International Journal of Infrared and Mill… (1999)

  6. No Access

    Article

    Large offset far infrared laser lines generation from the C-O stretching Q-branch of 13CD3OD

    laser of wide tunability to pump 13CD3OD we could observe 10 new far infrared laser lines ranging from 109 μm to 472 μm. The lines were generated by pum** infrared absorbing transitions of large offset apperta...

    R.C. Viscovini, E.M. Telles, A. Scalabrin, D. Pereira in Applied Physics B (1997)

  7. No Access

    Article

    Infrared optoacoustic spectroscopy of13CD3OD around the 10R and 10P CO2 laser lines

    In this work we present the results of an investigation about Doppler limited infrared absorbing transitions of the C-O stretching vibrational mode of13CD3OD by means of optoacoustic detection. This technique is ...

    R. C. Viscovini, A. Scalabrin, D. Pereira in International Journal of Infrared and Mill… (1996)