e =12, r=0.2a

4
=12, r=0.2a r=0.3a Red = TE (E-field parallel to plane of periodicity) Blue = TM (E-field perpendicular to plane of periodicity) -initio.mit.edu/photons/tutorial/photonic-intro.pdf

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e =12, r=0.2a. Red = TE (E-field parallel to plane of periodicity) Blue = TM (E-field perpendicular to plane of periodicity). r=0.3a. http://ab-initio.mit.edu/photons/tutorial/photonic-intro.pdf. Dielectric columns in air. Dielectric veins in air. TM D -field. TE H -field. Dielectric - PowerPoint PPT Presentation

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Page 1: e =12, r=0.2a

=12, r=0.2a

r=0.3a

Red = TE (E-field parallel to plane of periodicity)Blue = TM (E-field perpendicular to plane of periodicity)

http://ab-initio.mit.edu/photons/tutorial/photonic-intro.pdf

Page 2: e =12, r=0.2a

Dielectric columns in air

negative positive

Dielectricband

Airband

TMD-field

TEH-field

negative positive

Dielectricband

Airband

Dielectric veins in air

FROM: Photonic Crystals by J.D. Joannopoulos, R.D. Meade, J.N. Winn (Princeton Univ. Press: NJ, 1995)

Page 3: e =12, r=0.2a

Assumes =11.4

Page 4: e =12, r=0.2a

0.46

0.45

0.14

Requires feature size of ~ 54 nm

Requires feature size of ~ 420 nm