ldos-opt · Shaker et al. reproduction

Fabricability bake-off

Same wide slot (|x| ≤ 5, |y| ≤ 1), same warm start, 800 shifted steps. Objective −log LDOS + λ P, with P the mean (ρ_dilate − ρ_erode)² on the design. Winner: fab-r15 (R=0.15 was the only setting that changed the geometry without killing the cavity. R=0.1 left p frozen. Opened-init destroyed the resonance.).

Arm	λ	R	LDOS/vac	Q	P	Opening test
fab-l1	1	0.1	2.248e+06	5.818e+07	0.976	no
fab-l3	3	0.1	2.234e+06	5.784e+07	0.976	no
fab-l10	10	0.1	2.186e+06	5.662e+07	0.976	no
fab-r15	3	0.15	1.895e+03	6.156e+04	0.953	no

Updated 2026-08-12 20:27 UTC.

fab-l1: λ=1.0 R=0.1 LDOS/vac=2.248e+06 P=0.976 not fabricable

fab-l3: λ=3.0 R=0.1 LDOS/vac=2.234e+06 P=0.976 not fabricable

fab-l10: λ=10.0 R=0.1 LDOS/vac=2.186e+06 P=0.976 not fabricable

fab-r15: λ=3.0 R=0.15 LDOS/vac=1.895e+03 P=0.953 not fabricable