Experiment 2 Linear and Circular States of Polarization
Linear Polarization π’ = π π 8 π’ = π π π’ = π π π’ = π π 8 8 8 π’ = π π π’ = π π π’ = π π π’ = π π 8 8 8 8 π’ = π π 8
Rotating Linearly Polarized Light
π·πΈπ΄ = π π π = π Half-Wave Plate: π , π , π π = π fast Input slow After propagation through the half wave-plate fast slow Output
Half-Wave Plate fast Input slow After propagation through the half wave-plate fast slow Output
Aligning the HWP for rotating the linear polarization by ππΒ° HWP LP LP Laser Detector
Characterizing linearly polarized light LP on rotation mount HWP LP Laser Detector π± πΎ = π± π π ππ π πΎ β πΎ π Malusβs Law
Characterizing linearly polarized light LP on rotation mount LP Laser Detector π± πΎ = π± π π ππ π πΎ β πΎ π Malusβs Law
From Linear to Circular Polarized Light
π·πΈπ΄ = π π π = π π π = π Quarter-Wave Plate: π , π , π Input fast ππΒ° slow After propagation through the quarter wave-plate fast fast fast fast slow slow slow slow Output
Circular Polarization: fast fast fast fast slow slow slow slow fast fast fast slow slow slow slow fast
Detector M QWP LP BS Laser
LP on QWP LP rotation mount Laser Detector
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