2015/09/30 by Jinmyoung So, Jai-Min Choi
Engineering · Physics and Astronomy · #Asymmetry #Atomic physics #Laser #Materials science #Mechanical and Optical Resonators #Microfluidic and Bio-sensing Technologies #Molecular physics #Optical tweezers #Optics #Optoelectronics #Orbital Angular Momentum in Optics #Physics #Polarization (electrochemistry) #Stiffness #Trap (plumbing) #Trapping #physics.optics
paper · pdf · doi:10.3938/jkps.68.762
The previous manuscript has been substantially revised including the title. In this manuscript, we focused on the experimental demonstration of the subject with additional measurements. Theoretical part was removed and presented in arXiv:1510.02887
arxiv created 2015/11/26 · openalex publication_date 2016/03/01 · arxiv updated 2016/05/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report an experimental demonstration of tailoring the landscape of the optical potential by using the polarization state of a trap laser beam as a tuning knob. Two groups of polystyrene spheres, i.e., 300 nm and 1 μm, are optically trapped individually to investigate the effect of the intrinsic and a strongly-modified optical field distribution on the resulting trap stiffness, respectively. The angular variations of the orthogonal pair of stiffnesses, k x and k y , with the polarization state of the trap laser beam were systematically analyzed, and the results show that polarization control could provide a wide tuning range of trap-stiffness asymmetry (s T = 1− k x /k y ). The implication of asymmetry control of the optical potential is briefly discussed.