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J. Grote, D. Y. Zang, F. Ouchen, G. Subramanyam, P. Yaney, C. Bartsch, E. Heckman and R. Naik, “Progress of DNA Photonics,” Proceedings of SPIE, Vol. 7765, 2010, p. 776502. doi:10.1117/12.862160

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