光致弯曲中的深光穿透动力学
Deep optical penetration dynamics in photo-bending
摘要:
我们的模型的光稳态和动力学的照明,光敏,玻璃状液晶片。为了说明片的局部倾斜$θ$、有效入射强度、曲率和动力学之间的相互作用,我们采用局部入射光强度随角度的最简单变化,即$\cosθ$。静止状态下的倾斜永远不会超过垂直方向,但在强光下,可以在薄片的中间看到最大曲率。在动力学中,出现过冲和自食,揭示了光穿透的移动前沿是多么重要。在Ikeda和Yu(2003)的实验中,定性地进行了验证。
英文摘要:
We model both the photo-stationary state and dynamics of an illuminated, photo-sensitive, glassy liquid crystalline sheet. To illustrate the interplay between local tilt $θ$ of the sheet, effective incident intensity, curvature and dynamics, we adopt the simplest variation of local incident light intensity with angle, that is $\cosθ$. The tilt in the stationary state never overshoots the vertical, but maximum curvature could be seen in the middle of the sheet for intense light. In dynamics, overshoot and self-eclipsing arise, revealing how important moving fronts of light penetration are. Eclipsing is qualitatively as in the experiments of Ikeda and Yu (2003).
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