Twisted Photons

• Twisted Photons; Contents; Preface; List of Contributors; Color Plates; 1 The Orbital Angular Momentum of Light: An Introduction; 1.1 Introduction; 1.2 The Phenomenology of Orbital Angular Momentum; References; 2 Vortex Flow of Light: ''Spin'' and ''Orbital'' Flows in a Circularly Polarized Paraxial Beam; 2.1 Introduction; 2.2 Spin and Orbital Flows: General Concepts; 2.3 Transverse Energy Flows in Circularly Polarized Paraxial Beams; 2.4 Orbital Rotation without Orbital Angular Momentum; 2.5 Conclusion; References; 3 Helically Phased Beams, and Analogies with Polarization; 3.1 Introduction. 
• 3.2 Representation of Helically Phased Beams3.3 Exploiting the Analogous Representations of Spin and Orbital Angular Momentum; 3.3.1 Rotational Doppler Shifts and Geometrical Phase; 3.3.2 Mode Sorting using Geometric Phase; 3.3.3 Entanglement of Spatial Modes; 3.3.4 Photon Drag and the Mechanical Faraday Effect; 3.4 Conclusions; References; 4 Trapping and Rotation of Particles in Light Fields with Embedded Optical Vortices; 4.1 Introduction; 4.2 Laguerre-Gaussian Light Beams; 4.3 Origin of Optical Torques and Forces; 4.3.1 Intuitive Picture of Optical Forces. 
• 4.3.2 Angular Momentum within Geometric Optics4.3.3 Paraxial Beams; 4.3.4 Maxwell's Stress Tensor; 4.3.5 Linear Momentum Transfer; 4.3.6 Angular Momentum Transfer; 4.3.7 Polarization Spin Momentum; 4.4 Optical Vortex Fields for the Rotation of Trapped Particles; 4.4.1 Studies of Rotation of Trapped Objects using Optical Vortex Fields; 4.5 Optical Vortex Fields for Advanced Optical Manipulation; 4.6 Conclusions; Acknowledgments; References; 5 Optical Torques in Liquid Crystals; 5.1 The Optical Reorientation and the Photon Angular Momentum Flux; 5.1.1 Dynamical Equations of Liquid Crystals. 
• 5.1.2 Angular Momentum Fluxes5.2 Dynamical Effects Induced in Liquid Crystals by Photon SAM and OAM Transfer; 5.2.1 Experiments on OAM Transfer in Liquid Crystals; 5.2.1.1 Orbital Photon Angular Momentum Transfer with Unpolarized Light; 5.2.1.2 Investigation of the Combined Effect of the Spin and Orbital Photon Angular Momentum Transfer with Linearly Polarized Light; 5.2.1.3 Investigation of the Combined Effect of the Spin and Orbital Photon Angular Momentum Transfer with Circularly Polarized Light; 5.3 Conclusions; References; 6 Driving Optical Micromachines with Orbital Angular Momentum. 
• 6.1 Introduction6.2 Symmetry, Scattering, and Optically Driven Micromachines; 6.3 Experimental Demonstration; 6.3.1 A Preliminary Design; 6.3.2 Fabrication; 6.3.3 Optical Trapping and Rotation; 6.3.4 Optical Measurement of Torque; 6.3.5 Discussion; 6.4 Computational Optimization of Design; 6.4.1 Computational Modeling of Microrotors; 6.4.2 Performance of a Four-Armed Rotor; 6.4.3 Discussion; 6.5 Conclusion; References; 7 Rotational Optical Micromanipulation with Specific Shapes Built by Photopolymerization; 7.1 Introduction; 7.2 Microfabrication by Photopolymerization. 
• 7.2.1 Fabrication by Scanning a Single Focused Laser Beam. 

• This book deals with applications in several areas of science and technology that make use of light which carries orbital angular momentum. In most practical scenarios, the angular momentum can be decomposed into two independent contributions: the spin angular momentum and the orbital angular momentum. The orbital contribution affords a fundamentally new degree of freedom, with fascinating and wide-spread applications. Unlike spin angular momentum, which is associated with the polarization of light, the orbital angular momentum arises as a consequence of the spatial distribution of the intensi

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Ämnesord

Angular momentum. 

Electromagnetic waves. 

Light -- Scattering. 

Photon beams. 

Genre

Electronic books.  (LCSH)

Publikations- och innehållstyp

535.2 (DDC)

Uccb (kssb/8 (machine generated))