期刊
OPTICS EXPRESS
卷 12, 期 21, 页码 5172-5177出版社
OPTICAL SOC AMER
DOI: 10.1364/OPEX.12.005172
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Optical tweezers system has aggrandized the understanding of the light-matter interaction and is used frequently to transfer angular momentum of light to microscopic particles. Here we demonstrate experimentally, for the first time to our knowledge the use of self-imaged bottle beam in an optical tweezers system and we report the mechanical transfer of 'pure' on-axis spin angular momentum to an absorptive particle. The self-imaged bottle beam has embedded optical bottles or null intensity points where the absorptive particles are trapped and the transfer of spin angular momentum is accomplished without the default transfer of orbital angular momentum of a singular beam, which are used conventionally to trap absorptive particles. (C) 2004 Optical Society of America.
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