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Related Experiment Video

Updated: Jun 10, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Novel dichroic beam separator for frequency-doubled lasers.

C F Klein

    Applied Optics
    |August 19, 2010
    PubMed
    Summary

    A new glass rhomb effectively separates laser beams, offering high harmonic transmittance and fundamental beam rejection. This damage-resistant optical device is stable and maintains high quality for laser applications.

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    Area of Science:

    • Optics and Photonics
    • Laser Technology

    Background:

    • Frequency conversion in lasers generates harmonic beams, but residual fundamental beams can interfere with experiments.
    • Efficient separation of fundamental and harmonic beams is crucial for laser system performance.

    Purpose of the Study:

    • To introduce a novel glass rhomb for separating fundamental and harmonic laser beams.
    • To evaluate the performance and characteristics of this new optical device.

    Main Methods:

    • Demonstration of a novel glass rhomb design.
    • Characterization of transmittance, rejection, stability, and optical quality.

    Main Results:

    • The glass rhomb achieves high (> 95%) rejection of the fundamental beam.
    • It offers essentially loss-free transmittance for the harmonic beam.
    • The device exhibits mechanical and thermal stability and high optical quality.

    Conclusions:

    • The demonstrated glass rhomb is a simple, robust, and effective solution for separating fundamental and harmonic laser beams.
    • This device is suitable for use in frequency-doubled and frequency-tripled laser systems.

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