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Revision as of 18:06, 28 May 2014
Contents
Optical Tweezers
Resources
- [1] Directions on how to use a QPD in an optical tweezer setup.
- [2] Here are some slide prepping instructions from Berkeley.
Our own setup
- Here's how we did our Slide Set-Up.
Using NI Vision Assistant
- [3] Image Acquisition/Saving Images
- [4] How to track the microspheres in NI Vision Assistant using pattern matching.
Our calculations using Brownian Motion
-
2.56 micrometer spheres
- 4.6 mW Beam [5]
Calculating Trap Forces Using Stokes' Drag Force
-
Beam Power (mW) Escape Velocity (microns/second) Trap Force (pN) 5.5 20.57 0.88 8.5 33.49 1.44 11.7 40.00 1.72 15.3 62.60 2.69 19.0 84.71 3.64 23.0 110.77 4.76 - [6]
![[6]](http://i105.photobucket.com/albums/m234/Brian_Perrett/TrapForceMeasurementGraph1_zps502a6eea.png){kind=link}