Optical sculpting: Trapping through disorder and transfer of orbital angular momentum

T. Cizmar; M. Mazilu; H. Dalgarno; P. Ashok; F. Gunn-Moore; K. Dholakia

doi:10.1117/12.876357

Optical sculpting: Trapping through disorder and transfer of orbital angular momentum

T. Cizmar, M. Mazilu, H. Dalgarno, P. Ashok, F. Gunn-Moore, K. Dholakia

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, we explore the propagation of light through disordered material and ask whether we can create an optimal focus in such a scenario. We use the complex modulation of the input light (i.e. modulation in both phase and amplitude) for these studies, implemented by use a spatial light modulator (SLM) and show trapping and manipulation through a static turbid medium. We then extend the system to create a tandem SLM system with an acousto-optic deflector. This has further advantages as we can now not only project light fields into turbid media but can also create interference-free mode superpositions of light fields such as Laguerre-Gaussian (LG) and Bessel modes. This is illustrated by controlled rotation of trapped particles in weighted, interference-free superpositions of LG beams of opposite order but equal magnitude.

Original language	English
Title of host publication	Complex Light and Optical Forces V
DOIs	https://doi.org/10.1117/12.876357
Publication status	Published - 2011
Event	Complex Light and Optical Forces V - San Francisco, CA, United States Duration: 2011 Jan 26 → 2011 Jan 27

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7950
ISSN (Print)	0277-786X

Conference

Conference	Complex Light and Optical Forces V
Country/Territory	United States
City	San Francisco, CA
Period	11/1/26 → 11/1/27

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.876357

Cite this

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title = "Optical sculpting: Trapping through disorder and transfer of orbital angular momentum",

abstract = "In this paper, we explore the propagation of light through disordered material and ask whether we can create an optimal focus in such a scenario. We use the complex modulation of the input light (i.e. modulation in both phase and amplitude) for these studies, implemented by use a spatial light modulator (SLM) and show trapping and manipulation through a static turbid medium. We then extend the system to create a tandem SLM system with an acousto-optic deflector. This has further advantages as we can now not only project light fields into turbid media but can also create interference-free mode superpositions of light fields such as Laguerre-Gaussian (LG) and Bessel modes. This is illustrated by controlled rotation of trapped particles in weighted, interference-free superpositions of LG beams of opposite order but equal magnitude.",

author = "T. Cizmar and M. Mazilu and H. Dalgarno and P. Ashok and F. Gunn-Moore and K. Dholakia",

year = "2011",

doi = "10.1117/12.876357",

language = "English",

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series = "Proceedings of SPIE - The International Society for Optical Engineering",

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Cizmar, T, Mazilu, M, Dalgarno, H, Ashok, P, Gunn-Moore, F & Dholakia, K 2011, Optical sculpting: Trapping through disorder and transfer of orbital angular momentum. in Complex Light and Optical Forces V., 79500R, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7950, Complex Light and Optical Forces V, San Francisco, CA, United States, 11/1/26. https://doi.org/10.1117/12.876357

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AU - Cizmar, T.

AU - Mazilu, M.

AU - Dalgarno, H.

AU - Ashok, P.

AU - Gunn-Moore, F.

AU - Dholakia, K.

PY - 2011

Y1 - 2011

N2 - In this paper, we explore the propagation of light through disordered material and ask whether we can create an optimal focus in such a scenario. We use the complex modulation of the input light (i.e. modulation in both phase and amplitude) for these studies, implemented by use a spatial light modulator (SLM) and show trapping and manipulation through a static turbid medium. We then extend the system to create a tandem SLM system with an acousto-optic deflector. This has further advantages as we can now not only project light fields into turbid media but can also create interference-free mode superpositions of light fields such as Laguerre-Gaussian (LG) and Bessel modes. This is illustrated by controlled rotation of trapped particles in weighted, interference-free superpositions of LG beams of opposite order but equal magnitude.

AB - In this paper, we explore the propagation of light through disordered material and ask whether we can create an optimal focus in such a scenario. We use the complex modulation of the input light (i.e. modulation in both phase and amplitude) for these studies, implemented by use a spatial light modulator (SLM) and show trapping and manipulation through a static turbid medium. We then extend the system to create a tandem SLM system with an acousto-optic deflector. This has further advantages as we can now not only project light fields into turbid media but can also create interference-free mode superpositions of light fields such as Laguerre-Gaussian (LG) and Bessel modes. This is illustrated by controlled rotation of trapped particles in weighted, interference-free superpositions of LG beams of opposite order but equal magnitude.

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Y2 - 26 January 2011 through 27 January 2011

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Optical sculpting: Trapping through disorder and transfer of orbital angular momentum

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