A defect cavity is built from a half-wave silica spacer sandwiched between two…
PHYSICS · Subjective · Fermi University Physics · Optics & Photonics · Wave propagation and light in media · Interference and diffraction
What an Instrument Can See, Ch Media that are designed: plasmons, metamaterials and photonic crystals
Problem
A defect cavity is built from a half-wave silica spacer sandwiched between two tantala-silica quarter-wave mirrors (nH=2.08, nL=1.444), each mirror having 8 periods. At λ0=1550nm the transmission peak has a measured quality factor Q≈1400. If two more periods are added to each mirror (10 periods each), estimate the new Q, using the rule, found in the text, that Q scales by a factor (nH/nL)2≈2.1 for each additional period added to both mirrors.