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Creators/Authors contains: "Johnson, Jeremy"

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  1. ; ; ; ; ; ( , Digital Discovery)

    Diffusion Models outperform Generative Adversarial Networks (GANs) and Wasserstein GANs in material discovery.

     
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    Free, publicly-accessible full text available January 17, 2025
  2. ; ; ; ; ; ( , International Conference on Infrared Millimeter and Terahertz Waves)
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  3. ; ; ; ; ; ; ; ( , International Conference on Infrared Millimeter and Terahertz Waves)
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  4. ; ; ; ; ; ; ; ( , International Conference on Infrared Millimeter and Terahertz Waves)
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  5. ; ; ; ; ; ; ; ; ; ; et al ( , Advanced Optical Materials)
    Abstract

    Large crystal growth and characterization of the optical and terahertz (THz) properties of organic nonlinear optical (NLO) crystal NMBA (4‐Nitro‐4′‐methylbenzylidene aniline) is presented. The reported method of crystal growth consistently produces high‐quality single crystals. The THz generation efficiency and optical properties of NMBA to other THz generation crystals including BNA and MNA are compared. The low THz absorptions that make NMBA an ideal source for THz time‐domain spectroscopy are highlighted.

     
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    Free, publicly-accessible full text available January 22, 2025
  6. ; ; ; ( , CLEO 2023)

    We generate tunable narrowband THz radiation using BNA bonded to sapphire in tandem with a chirp and delay technique. Using a Ti:Sapphire laser, we test the limits of intense THz generation (0.1 to 5 THz).

     
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  7. ; ; ; ; ; ; ; ; ; ; et al ( , International Conference on Infrared Millimeter and Terahertz Waves)
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  8. ; ; ; ; ; ; ; ( , CLEO 2023)

    We have improved the THz output and damage threshold of yellow organic THz generation crystals by fusing them to sapphire and using liquid crystals as index matching fluid to reduce reflective losses.

     
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  9. ; ; ; ; ; ; ; ; ; ; et al ( , CLEO 2023)

    We present the optical and THz properties of highly efficient organic nonlinear optical crystals PNPA and MNA. These crystals outperform industry standards in broadband THz generation through optical rectification of IR light pulses.

     
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  10. ; ; ; ( , Frontiers in Optics + Laser Science 2022)

    Nonlinear optical processes with THz frequency light have rarely been measured and characterized. Using 2D THz spectroscopy, we clearly observe THz-optical rectification and THz- second harmonic generation in a variety of materials.

     
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