MEASUREMENT OF PHOTON PRESSURE |
|---|
| Jeah-Sheng Wu, Hsien-Chi Yeh, Sheau-shi Pan |
- Abstract:
- Center for Measurement Standards has established a system to probe micro force down to nano Newton. Based on a very stable torsion strip pendulum with restoring torque constant 5.25·10-6 N·m/rad. Light beam of a high power Nd:YAG laser was reflected by the mirror attached on pendulum frame. Result in angular deflection of the pendulum. The deflection was measured by an angular interferometer with resolution 1.95·10-7 rad. Modulation signal, generated by varying power of laser, shift the pendulum from its standing position. The angular deflection equivalent torque is the same as photon generating torque to within 22%.
- Keywords:
- photon pressure, torsion pendulum
- Download:
- PWC-2006-TC3-044u.pdf
- DOI:
- -
- Event details
- Event name:
- XVIII IMEKO World Congress
- Title:
Metrology for a Sustainable Development
- Place:
- Rio de Janeiro, BRAZIL
- Time:
- 17 September 2006 - 22 September 2006