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    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Condensed Matter Physics

    Background:

    • Real-time thermal imaging systems are crucial for rapid optical information processing.
    • Liquid crystal blue phases exhibit unique thermo-optical properties.
    • Existing thermal imaging technologies have limitations in certain applications.

    Purpose of the Study:

    • To present a novel thermal imaging device utilizing liquid crystal blue phases.
    • To leverage the thermo-optical properties of blue phases for thermal field visualization.
    • To demonstrate real-time, room-temperature operation for diverse applications.

    Main Methods:

    • Utilizing a weak first-order phase transition in liquid crystal blue phases.
    • Controlling phase transitions with external thermal fields.
    • Observing stimulated interconversions of selective reflections for imaging.

    Main Results:

    • Successful visualization of two-dimensional spatial distribution of thermal fields.
    • Demonstration of a novel thermal imaging device based on liquid crystal blue phases.
    • Real-time operation at room temperature achieved.

    Conclusions:

    • The proposed device offers a new approach to real-time thermal imaging.
    • The technology shows potential for applications in medicine, security, aerospace, and art inspection.
    • Liquid crystal blue phases provide a promising platform for advanced optical sensing.