A Pico-Newton Scale Force Measurement Apparatus for Polymer Physics and Non-equilibrium Statistical Mechanics

用于高分子物理和非平衡统计力学的皮牛顿力测量装置

• 批准号: LE0560818
• 负责人: Prof Edith Sevick
• 金额: $ 10.27万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Infrastructure, Equipment and Facilities
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LE0560818
• 关键词: Pico; Newton; Scale; Force; Measurement

We propose to build a state-of-the-art Optical Tweezers apparatus that measures small forces and torques on micron-sized objects located in 'optical traps'. Using a single laser beam and computer-generated holograms, we will create arrays of optical traps that move or 'dance', and alter the force/torque-imposing properties of each trap. This proposed research equipment will be used (1) to study the physics of single synthetic polymer and naturally occuring biopolymer chains, (2) to quantify experimentally, and for the first time, newly predicted molecular-scale forces, and (3) to demonstrate new theories in non-equilibrium statistical mechanics that quantitatively describe the operation of nanomachines.

我们建议建立一个国家的最先进的光镊装置，测量微小的力量和扭矩的微米大小的物体位于“光阱”。 使用单一的激光束和计算机生成的全息图，我们将创建移动或“跳舞”的光学陷阱阵列，并改变每个陷阱的力/扭矩施加特性。 该研究设备将用于（1）研究单一合成聚合物和自然发生的生物聚合物链的物理学，（2）通过实验首次量化新预测的分子尺度力，以及（3）证明非平衡统计力学中定量描述纳米机器操作的新理论。