Related Experiment Video
Updated: Jul 6, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
Study of benzocyclobutene as an optical material at elevated temperatures
Abstract:
Temperature changes of micro-optical elements can be expected in applications such as telecommunication and laser machining. We present a comparative study of diffractive gratings fabricated in benzocyclobutene (BCB) and in a conventional photoresist under the influence of elevated temperature. We measured variations in both optical diffraction efficiency and topography by heating the samples to 300 degrees C in air in a specially built oven. Our main findings show that gratings fabricated in BCB exhibit small changes, both optically and topographically, during the first 45 min, whereas the conventional photoresist gratings change drastically within just a few minutes.
Related Concept Videos
Frost Circles for Different Conjugated Systems
Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation
Benzene to 1,4-Cyclohexadiene: Birch Reduction Mechanism
UV–Vis Spectroscopy of Conjugated Systems
One of the factors influencing λmax is the extent of conjugation in the...
Cycloaddition Reactions: MO Requirements for Photochemical Activation
NMR Spectroscopy of Benzene Derivatives

