Optically trapped and controlled microapertures for studies of spatial coherence in an arbitrary light field

W. M. Lee; K. Dholakia

doi:10.1063/1.2751590

Optically trapped and controlled microapertures for studies of spatial coherence in an arbitrary light field

W. M. Lee, K. Dholakia

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

By controlling the rotation rate of a trapped birefringent particle with an optically applied torque, the authors introduce a miniscule wave front deformation at a specific location within an arbitrary light field, with the particle acting as an optical microdiffuser. A trapped birefringent particle and a trapped silica microsphere are positioned to form Young's double slit experiment within a probe light field. The far-field interference from the diffracted optical fields from these particles enable the authors to infer the relative spatial coherence between these local sampling points. With multiple trapped particles, the authors may perform multipoint coherence analysis of a light field.

Original language	English
Article number	261101
Journal	Applied Physics Letters
Volume	90
Issue number	26
DOIs	https://doi.org/10.1063/1.2751590
Publication status	Published - 2007

Bibliographical note

Funding Information:
This work is supported by the European Science Foundation grant NOMSAN which was supported by funds from the UK Engineering and Physical Sciences Research Council and the European Framework 6 Programme. One author (W.M.L.) acknowledges Einst Technology Pte Ltd. for the support and Klaus Metzger for his technical assistance.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2751590

Cite this

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abstract = "By controlling the rotation rate of a trapped birefringent particle with an optically applied torque, the authors introduce a miniscule wave front deformation at a specific location within an arbitrary light field, with the particle acting as an optical microdiffuser. A trapped birefringent particle and a trapped silica microsphere are positioned to form Young's double slit experiment within a probe light field. The far-field interference from the diffracted optical fields from these particles enable the authors to infer the relative spatial coherence between these local sampling points. With multiple trapped particles, the authors may perform multipoint coherence analysis of a light field.",

author = "Lee, {W. M.} and K. Dholakia",

note = "Funding Information: This work is supported by the European Science Foundation grant NOMSAN which was supported by funds from the UK Engineering and Physical Sciences Research Council and the European Framework 6 Programme. One author (W.M.L.) acknowledges Einst Technology Pte Ltd. for the support and Klaus Metzger for his technical assistance.",

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AU - Dholakia, K.

N1 - Funding Information: This work is supported by the European Science Foundation grant NOMSAN which was supported by funds from the UK Engineering and Physical Sciences Research Council and the European Framework 6 Programme. One author (W.M.L.) acknowledges Einst Technology Pte Ltd. for the support and Klaus Metzger for his technical assistance.

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N2 - By controlling the rotation rate of a trapped birefringent particle with an optically applied torque, the authors introduce a miniscule wave front deformation at a specific location within an arbitrary light field, with the particle acting as an optical microdiffuser. A trapped birefringent particle and a trapped silica microsphere are positioned to form Young's double slit experiment within a probe light field. The far-field interference from the diffracted optical fields from these particles enable the authors to infer the relative spatial coherence between these local sampling points. With multiple trapped particles, the authors may perform multipoint coherence analysis of a light field.

AB - By controlling the rotation rate of a trapped birefringent particle with an optically applied torque, the authors introduce a miniscule wave front deformation at a specific location within an arbitrary light field, with the particle acting as an optical microdiffuser. A trapped birefringent particle and a trapped silica microsphere are positioned to form Young's double slit experiment within a probe light field. The far-field interference from the diffracted optical fields from these particles enable the authors to infer the relative spatial coherence between these local sampling points. With multiple trapped particles, the authors may perform multipoint coherence analysis of a light field.

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ER -

Optically trapped and controlled microapertures for studies of spatial coherence in an arbitrary light field

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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