Research on the intensity profiles of high-order Laguerre-Gaussian mode laser beams

Liu, Tianchang; Tian, Mingcheng; Sheng, Quan; Fu, Shijie; Shi, Wei; Yao, Jianquan

doi:10.1016/j.infrared.2024.105459

Infrared Physics & Technology

2024

DOI: 10.1016/j.infrared.2024.105459

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Research on the intensity profiles of high-order Laguerre-Gaussian mode laser beams

Tianchang Liu,

Mingcheng Tian,

Quan Sheng

et al.

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Intrinsic angular momentum, spin and helicity of higher-order Poincaré modes

Babiker,

Koksal,

Lembessis

et al. 2024

J. Opt.

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The availability of coherent sources of higher order Poincar\'e optical beams have opened up new opportunities for applications such as in the optical trapping of atoms and small particles, the manipulation of chirally-sensitive systems and in improved encoding schemes for broad-bandwidth communications. Here we determine the intrinsic properties of of integer order $m\geq 0$ Poincar\'e Laguerre-Gaussian (LG) modes which have so far neither been evaluated, nor their significance highlighted. The theoretical framework we adopt here is both novel and essential because it emphasises the crucial role played by the normally ignored axial components of the twisted light fields of these modes. We show that the inclusion of the axial field components enables the intrinsic properties of the Poincar\'e modes, notably their angular momentum, both spin and orbital as well as their helicity and chirality, to be determined. We predict significant enhancements of the intrinsic properties of these modes when compared with those due to the zero order LG modes. In particular, we show that higher order LG Poincar\'e modes exhibit super-chirality and, significantly so, even in the case of the first order $m=1$.

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Intrinsic angular momentum, spin and helicity of higher-order Poincaré modes

Babiker,

Koksal,

Lembessis

et al. 2024

J. Opt.

View full text Add to dashboard Cite

show abstract

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Research on the intensity profiles of high-order Laguerre-Gaussian mode laser beams

Cited by 1 publication

References 23 publications

Intrinsic angular momentum, spin and helicity of higher-order Poincaré modes

Intrinsic angular momentum, spin and helicity of higher-order Poincaré modes

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