THE DIFFICULTY OF MEASURING ORBITAL ANGULAR MOMENTUM

被引：2
|
作者：
Preece, Daryl [1 ]
Nieminen, Timo A. [1 ]
Asavei, Theodor [1 ]
Heckenberg, Norman R. [1 ]
Rubinsztein-Dunlop, Halina [1 ]
机构：
[1] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia
来源：
ATTI ACCADEMIA PELORITANA DEI PERICOLANTI-CLASSE DI SCIENZE FISICHE MATEMATICHE E NATURALI | 2011年 / 89卷
关键词：
D O I：
10.1478/C1V89S1P076
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Light can carry angular momentum as well as energy and momentum; the transfer of this angular momentum to an object results in an optical torque. The development of a rotational analogue to the force measurement capability of optical tweezers is hampered by the difficulty of optical measurement of orbital angular momentum. We present an experiment with encouraging results, but emphasise the difficulty of the task.
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页数：4
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