Controlling the Flow of Microscopic Particles—The Role of Beam Size

• 作者: Ashok Kumar Jitendra Bhatt Ravindra Pratap Singh Saiyed Nisar Ali Jaaffrey
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 医学
• 关键词: OPTICAL MANIPULATION OPTICAL TWEEZERS Directional FLOW
• 年，卷（期）: 2012,（4）
• 页码范围: 294-299
• 页数: 6页
• 分类号: R73

摘要

Flow of micro particles and fluids is important in many microscopic systems. Here we present details of our finding of a directional flow of micro particles due to a single beam optical trap. It was found that the directional flow depends upon the size of optical trap, the number density of particles in the solution and the time after the trap was created. We suggest controlling the motion of microscopic particles in a fluid by varying a simple parameter like beam size for microfluidics applications.