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Making Conjugation-induced Fluorescent PEGylated Virus-like Particles by Dibromomaleimide-disulfide Chemistry
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Ultraviolet phase conjugation.

B J Feldman, R A Fisher, S L Shapiro

    Optics Letters
    |August 25, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Researchers achieved ultraviolet (UV) phase conjugation using degenerate four-wave mixing. Diluting carbon disulfide (CS2) in UV-transmitting solvents enabled tunable UV phase conjugation via the optical Kerr effect.

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    Area of Science:

    • Nonlinear Optics
    • Quantum Optics
    • Ultraviolet Spectroscopy

    Background:

    • Phase conjugation is a critical nonlinear optical process.
    • Previous demonstrations were limited to longer wavelengths.
    • Developing UV phase conjugation is essential for advanced optical applications.

    Purpose of the Study:

    • To demonstrate ultraviolet (UV) phase conjugation for the first time.
    • To investigate the use of carbon disulfide (CS2) mixtures for UV phase conjugation.
    • To explore alternative Kerr media and saturable absorbers for UV phase conjugation.

    Main Methods:

    • Degenerate four-wave mixing (DFWM) technique.
    • Utilized a 15-picosecond (psec) pulse at 2660 Angstroms (A).
    • Employed 1-mm samples of carbon disulfide (CS2) diluted in UV-transmitting solvents.

    Main Results:

    • Achieved 0.1% conjugate reflectivities at 2660 A.
    • Dilution of CS2 in solvents created a concentration-tunable spectral window (2450-2850 A).
    • Observed weaker phase conjugation in other Kerr media and saturable absorbers.

    Conclusions:

    • Successfully demonstrated the first UV phase conjugation.
    • The optical Kerr effect in CS2 mixtures is viable for UV phase conjugation.
    • UV phase conjugation is achievable in various nonlinear media.