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D. Swain, P. T. Anusha, T. Shuvan Prashant, S. P. Tewari, T. Sarma, P. K. Panda and S. Venugopal Rao, “Ultrafast Excited State Dynamics and Dispersion Studies of Nonlinear Optical Properties in Dinaphthoporphycenes,” Applied Physics Letters, Vol. 100, No. 14, 2012, pp. 141109141113. doi:10.1063/1.3701274

has been cited by the following article:

• TITLE: Nonlinear Optical Studies of DNA Doped Rhodamine 6G-PVA Films Using Picosecond Pulses

  AUTHORS: Sasidharan Sreeja, Balan Nityaja, Debasis Swain, Vadakkedathu Parameswaran Narayana Nampoori, Padmanabhan Radhakrishnan, Soma Venugopal Rao

  KEYWORDS: DNA; Thin Films; Z-Scan; Picosecond; Two-Photon Absorption

  JOURNAL NAME: Optics and Photonics Journal, Vol.2 No.3, September 20, 2012

  ABSTRACT: We present our results from the measurements of third-order optical nonlinearity in DNA doped Rhodamine 6G/PVA films achieved through Z-scan measurements using ~2 picosecond (ps) pulses at a wavelength of 800 nm. The films demonstrated negative nonlinear refractive index (n2) with magnitudes of (0.065 - 2.89) × 10–14 cm2/W with varying concentration of DNA. Open aperture data demonstrated strong two-photon absorption with a magnitude of ~1.6 cm/GW for films doped with 2 wt% of DNA. The recovery time of excited state population, retrieved from the degenerate pump-probe experimental data, was