title: Systematic hole-shifting of L-type nanocavity with an ultrahigh Q factor.
abstract: We report simple systematic hole-shifting rules applicable to any Lx (x:2,3,4,5,…) nanocavity. The rules specify six sets of holes to be tuned with only two or three shift parameters. While keeping the same cavity wavelength and nearly the same mode volume, the new rule increases the Q factor by nearly one order of magnitude compared with an edge-hole-shifted Lx nanocavity. The Q factor of the high-order mode is also greatly increased. This merit is obvious from the maximum experimental Q factors of over 500,000 at L2 and of over 1,000,000 at L3, L4, and L5 achieved in Si photonic crystals.
authors.forename: Eiichi
authors.initials: E
authors.lastname: Kuramochi
authors.forename: Elan
authors.initials: E
authors.lastname: Grossman
authors.forename: Kengo
authors.initials: K
authors.lastname: Nozaki
authors.forename: Koji
authors.initials: K
authors.lastname: Takeda
authors.forename: Akihiko
authors.initials: A
authors.lastname: Shinya
authors.forename: Hideaki
authors.initials: H
authors.lastname: Taniyama
authors.forename: Masaya
authors.initials: M
authors.lastname: Notomi