Marcin Jarosław Marzejon - Publikacje - MOST Wiedzy

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Zdjęcie profilowe:  Marcin Jarosław Marzejon

Marcin Jarosław Marzejon

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Rok 2022
  • Femtosecond Er-doped fiber laser source tunable from 872 to 1075 nm for two-photon vision studies in humans
    Publikacja

    - Biomedical Optics Express - Rok 2022

    We report the development of a widely-tunable femtosecond fiber laser system and its application for two-photon vision studies. The source is based on an Er-doped fiber laser with spectral shift up to 2150 nm, followed by a second harmonic generation module to generate a frequency-doubled beam tunable from 872 to 1075 nm. The source delivers sub-230 fs pulses with nearly-constant duration over the entire tuning range, with output...

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  • In vivo imaging of the human eye using a two-photon excited fluorescence scanning laser ophthalmoscope
    Publikacja
    • J. Boguslawski
    • G. Palczewska
    • S. Tomczewski
    • J. Milkiewicz
    • P. Kasprzycki
    • D. Stachowiak
    • K. Komar
    • M. J. Marzejon
    • B. L. Sikorski
    • A. Hudzikowski... i 6 innych

    - JOURNAL OF CLINICAL INVESTIGATION - Rok 2022

    BACKGROUND. Noninvasive assessment of metabolic processes that sustain regeneration of human retinal visual pigments (visual cycle) is essential to improve ophthalmic diagnostics and to accelerate development of new treatments to counter retinal diseases. Fluorescent vitamin A derivatives, which are the chemical intermediates of these processes, are highly sensitive to UV light; thus, safe analyses of these processes in humans...

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  • Towards spectral sensitivity curve for two-photon vision mechanism
    Publikacja

    - Rok 2022

    Abstract Purpose: The perceived brightness of different visible light sources can be compared with photometric units based on the standardized luminosity curves (300-780nm range). As reported previously (PNAS 111(50), pp. E5445-E5454 (2014)), near-infrared (NIR) radiation can cause isomerization of visual pigments by one- or two-photon absorption. The perceived color of the stimulus is red in the case of one-photon vision (1PV)...

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  • Two-photon perimetry utilizing picosecond laser

    Age-related impairments are becoming more and more severe for aging societies. The sensory organ diseases are particularly troublesome as they exclude seniors from their everyday activity. Therefore, maintaining good quality eyesight is essential for normal functioning. New medical therapies help restrain age-related changes, but still, monitoring is essential to the treatment process. Humans do not have the natural ability to...

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