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A Fluorimeter on the Basis of a Femtosecond Cr+4: Forsterite Laser

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Abstract

An apparatus for measuring luminescence lifetimes using the femtosecond up-conversion method is presented. A laser system based on a chromium–forsterite crystal with a lasing wavelength of 1250 nm is used to generate ultrashort pulses. Luminescence is excited in a sample by optical harmonics that are generated in nonlinear optical crystals. The width of the instrument function of the system is 200 fs. Methods for optimizing the signal-to-noise ratio in measurements are discussed. The results of measurements of the fluorescence- decay dynamics and the anisotropy of aqueous solutions of an inclusion complex of the 4-DASPI styrene dye in cucurbit[6]uril on short (5 ps) and long (500 ps) time scales are presented.

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Authors and Affiliations

  1. Center of Photochemistry, Crystallography and Photonics Federal Research Center, Russian Academy of Sciences, Moscow, 119421, Russia

    Yu. A. Shandarov, I. V. Kryukov, D. A. Ivanov, A. A. Ivanov, N. Kh. Petrov & M. V. Alfimov

  2. Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow oblast, 141700, Russia

    N. Kh. Petrov & M. V. Alfimov

Authors
  1. Yu. A. Shandarov
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  2. I. V. Kryukov
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  3. D. A. Ivanov
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  4. A. A. Ivanov
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  5. N. Kh. Petrov
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  6. M. V. Alfimov
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Corresponding author

Correspondence to Yu. A. Shandarov.

Additional information

Original Russian Text © Yu.A. Shandarov, I.V. Kryukov, D.A. Ivanov, A.A. Ivanov, N.Kh. Petrov, M.V. Alfimov, 2018, published in Pribory i Tekhnika Eksperimenta, 2018, No. 4, pp. 90–95.

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Shandarov, Y.A., Kryukov, I.V., Ivanov, D.A. et al. A Fluorimeter on the Basis of a Femtosecond Cr+4: Forsterite Laser. Instrum Exp Tech 61, 556–561 (2018). https://doi.org/10.1134/S0020441218040103

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  • DOI: https://doi.org/10.1134/S0020441218040103

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