论文标题
加速热扩散：微型管理器的快速热松弛
Accelerating the heat diffusion: fast thermal relaxation of a microcantilever
论文作者
论文摘要
在大多数系统中，相对于机械放松，热扩散本质上是缓慢的。我们在这里设计了一种通用方法来加速1D对象的温度场的放松，以击败机械时间尺度。这种方法应用于微米大小的硅悬臂，该硅悬臂由激光束局部加热。激光功率的量身定制驾驶协议被得出以迅速达到固定状态。该模型是在实验上实施的，从而产生了热弛豫的显着加速度，最多是因子30。与理论预测的一致性相当一致。该策略允许与自然机械放松相比，达到热稳态的速度要快得多。
In most systems, thermal diffusion is intrinsically slow with respect to mechanical relaxation. We devise here a generic approach to accelerate the relaxation of the temperature field of a 1D object, in order to beat the mechanical time scales. This approach is applied to a micro-meter sized silicon cantilever, locally heated by a laser beam. A tailored driving protocol for the laser power is derived to quickly reach the thermal stationary state. The model is implemented experimentally yielding a significant acceleration of the thermal relaxation, up to a factor 30. An excellent agreement with the theoretical predictions is reported. This strategy allows a thermal steady state to be reached significantly faster than the natural mechanical relaxation.
