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Through the Looking Glass and What We Found There. E. B. k. Reduced phase velocity: n Absorption: k. TE. TM. TM. TE. internal reflection: n = 0.667. external reflection: n = 1.5. variable phase. TE. TE. TM. TM. internal reflection: n = 0.667. external reflection: n = 1.5.
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Through the Looking Glass and What We Found There E B k Reduced phase velocity: nAbsorption: k
TE TM TM TE internal reflection:n = 0.667 external reflection:n = 1.5
variable phase TE TE TM TM internal reflection:n = 0.667 external reflection:n = 1.5
write r in this form: Why? Because: phase shift = 2a
TM TE TM-TE Phase shift upon total internal reflection: TM TE Tunable phase lag based only on dielectric reflections!
The Fresnel Rhomb: linear glass circular
Phase Retarder “birefringence” A dependence of the index of refraction on polarization (anisotropy in n). Jones:
Jones matrix: Phase Retarder circular or elliptical SA linear Phase shift between H and V.
1/8 WP QWP FA polarizer SA TA Phase Retarder
Jones Matrix: Rotator rotate by b linear “optical activity” Rotation of linearly polarized light as it travels through a material.
“optical activity” r = Specific rotation: 10’s – 100’s degree/mm (depends on wavelength) RCP + LCP = linear nL> nR Optical activity can be thought of as the result of circular birefringence!
Manipulating Polarization: Dichroism Birefringence Linear Circular