Fig. 4: Theoretical modeling of measured hybrid electro-optic cavity features and active EOC design principles.
From: Electro-optic cavities for in-situ measurement of cavity fields
a Corrected EOC spectra are displayed (false color), with overlaid eigenvalues obtained from our cavity-field model, color-coded (green→purple) according to their respective prominence factor value \({P}^{q}\left({L}_{{\rm{Air}}}\right)\). b Spatial mode intensity profiles for gap size \({L}_{{\rm{Air}}}\) = 167 µm, offset by mode frequency, colored according to the prominence factor (green→purple). The blue shaded regions denotes the quartz layers. c Evolution of the 7th cavity mode’s intensity profile plotted as a function of air gap length, displaying the spatial origin of the prominence factor (green→purple) oscillation. d The evolution of signal strength (saturation), linewidth, and prominence factor (hue) are shown at 2.55 THz, as a function of quartz length and air gap size. The experimentally-implemented quartz length is denoted by the dashed line. e Corrected EOC spectra at air gap sizes corresponding to a resonance at 2.55 THz (top, green), and anti-resonance (bottom, red), corresponding to those in (d)
