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    • Keywords


      Thermal lensing; nonlinear absorption; rhodamine B

    • Abstract


      Thermal lensing effect was studied in aqueous solutions of rhodamine B using 532 nm, 9 ns pulses from a Nd:YAG laser. A low intensity He-Ne laser beam was used for probing the thermal lens. Results obtained show that it is appropriate to use this technique for studying nonlinear absorption processes like two photon absorption or excited state absorption and for analyzing dimerization equilibria.

    • Author Affiliations


      C V Bindhu1 S S Harilal1 2 V P N Nampoori1 C P G Vallabhan1

      1. Laser Division, International School of Photonics, Cochin University of Science and Technology, Cochin - 682 022, India
      2. Department of Physics, Sree Narayana College, Cherthala - 688 582, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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