光子的轨道角动量及应用 巩龙延
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Making helical phasefronts B1. Spiral Phase Plate (SPP)
Optics Communication 112 (5–6): 321
21
Making helical phasefronts B1. Spiral Phase Plate (SPP)
14
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Orbital angular momentum
15
Getting started on Orbital Angular Momentum of Light A3.Amplitude and phase Amplitude:
Professor Les Allen
5
Getting started on Orbital Angular Momentum of Light A1. Pioneering work Formalism:
6
Getting started on Orbital Angular Momentum of Light A1. Pioneering work For a linearly polarized laser mode:
10
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts
11
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Angular-momentum of light
7
Getting started on Orbital Angular Momentum of Light A1. Pioneering work
8
Getting started on Orbital Angular Momentum of Light A1. Pioneering work
The linear momentum density:
16
Getting started on Orbital Angular Momentum of Light A3.Amplitude and phase Phase:
17
Getting started on Orbital Angular Momentum of Light A3.Amplitude and phase
12
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Calculate AM from EM field
13
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Spin angular momentum
Orbital Angular Momentum of Photons
1
2
Outline
Getting started on Orbital Angular Momentum of Light
Making helical phasefronts Application Conclusions
9
Getting started on Orbital Angular Momentum of Light A1. Pioneering work For arbitrary polarization:
The linear momentum density:
The Z component of total angular momentum density
3
源自文库
Outline
Getting started on Orbital Angular Momentum of Light
Making helical phasefronts Application Conclusions
4
Getting started on Orbital Angular Momentum of Light A1. Pioneering work
The complex amplitude of incident beams The complex amplitude directly after the plate
22
Making helical phasefronts
B2. Hologram
A more convenient approach for generating OAM is based on using diffraction on a fork-like or pitchfork hologram.[7][8][9][10] Holograms can be also generated dynamically under the control of a computer by using a spatial light modulator, or SLM [11].
18
Outline
Getting started on Orbital Angular Momentum of Light
Making helical phasefronts Application Conclusions
19
Making helical phasefronts B1. Spiral Phase Plate (SPP) A light beam can acquire OAM by crossing a spiral phase plate, with a inhomogeneous thickness
Making helical phasefronts B1. Spiral Phase Plate (SPP)
Optics Communication 112 (5–6): 321
21
Making helical phasefronts B1. Spiral Phase Plate (SPP)
14
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Orbital angular momentum
15
Getting started on Orbital Angular Momentum of Light A3.Amplitude and phase Amplitude:
Professor Les Allen
5
Getting started on Orbital Angular Momentum of Light A1. Pioneering work Formalism:
6
Getting started on Orbital Angular Momentum of Light A1. Pioneering work For a linearly polarized laser mode:
10
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts
11
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Angular-momentum of light
7
Getting started on Orbital Angular Momentum of Light A1. Pioneering work
8
Getting started on Orbital Angular Momentum of Light A1. Pioneering work
The linear momentum density:
16
Getting started on Orbital Angular Momentum of Light A3.Amplitude and phase Phase:
17
Getting started on Orbital Angular Momentum of Light A3.Amplitude and phase
12
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Calculate AM from EM field
13
Getting started on Orbital Angular Momentum of Light A2.Orbital Angular Momentum from helical phase fronts Spin angular momentum
Orbital Angular Momentum of Photons
1
2
Outline
Getting started on Orbital Angular Momentum of Light
Making helical phasefronts Application Conclusions
9
Getting started on Orbital Angular Momentum of Light A1. Pioneering work For arbitrary polarization:
The linear momentum density:
The Z component of total angular momentum density
3
源自文库
Outline
Getting started on Orbital Angular Momentum of Light
Making helical phasefronts Application Conclusions
4
Getting started on Orbital Angular Momentum of Light A1. Pioneering work
The complex amplitude of incident beams The complex amplitude directly after the plate
22
Making helical phasefronts
B2. Hologram
A more convenient approach for generating OAM is based on using diffraction on a fork-like or pitchfork hologram.[7][8][9][10] Holograms can be also generated dynamically under the control of a computer by using a spatial light modulator, or SLM [11].
18
Outline
Getting started on Orbital Angular Momentum of Light
Making helical phasefronts Application Conclusions
19
Making helical phasefronts B1. Spiral Phase Plate (SPP) A light beam can acquire OAM by crossing a spiral phase plate, with a inhomogeneous thickness