2005
DOI: 10.1364/opex.13.009272
|View full text |Cite
|
Sign up to set email alerts
|

Optimization of circular photonic crystal cavities - beyond coupled mode theory

Abstract: Abstract:We study comprehensively using numerical simulations a new class of resonators, based on a circular photonic crystal reflector. The dependence of the resonator characteristics on the reflector design and parameters is studied in detail. The numerical results are compared to analytic results based on coupled mode theory. High quality factors and small modal volumes are found for a wide variety of design parameters.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2

Citation Types

0
13
0

Year Published

2007
2007
2014
2014

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 21 publications
(13 citation statements)
references
References 23 publications
0
13
0
Order By: Relevance
“…rectangular lattice, triangular lattice and sunflower lattice. The sunflower type of lattice has linearly increasing number and constant angular size of holes [8]. This lattice is highly symmetric with infinite number of symmetry planes.…”
Section: Introductionmentioning
confidence: 99%
“…rectangular lattice, triangular lattice and sunflower lattice. The sunflower type of lattice has linearly increasing number and constant angular size of holes [8]. This lattice is highly symmetric with infinite number of symmetry planes.…”
Section: Introductionmentioning
confidence: 99%
“…Indeed, random disorder is known to improve the Q factor of certain types of cavities. 13 The surrounding air hole lattice need not even have a periodic pattern; circular photonic crystal patterns 14,15 and quasiperiodic patterns 16 can also create an effective optical confinement. It is clear that various types of defects can improve the Q factor and that this design space has not yet been fully investigated.…”
Section: Introductionmentioning
confidence: 99%
“…Alternatively, CPC is considered as a very promising approach because it simultaneously possesses continuous slab structure and isotropic bandgap [15,16]. In this Letter, we present a 1.16-μm-radius Si disk embedded in a sunflower-type CPC [16,17], which allows us to overcome the radiation limit of the bare disks. We obtain an ultrahigh measured loaded optical Q (7.4 × 10 5 ), near an order of magnitude higher than that of a bare disk of similar size [6,7,18].…”
mentioning
confidence: 99%
“…A micrometer-sized disk with radius R, separated from the surrounding CPC by a gap g, is placed inside such a C3 cavity. Ideally, the confinement of the CPC can be further improved by radially chirping the hole array to maximally satisfy the phase-matching condition [17], but for N ≥ 3 such chirping becomes negligible and therefore is not adopted in the proposed structure. The PBG effect of a perfect CPC lattice is investigated through three-dimensional (3D) finitedifference time-domain (FDTD) simulation, in which a TE-like polarized light wave excited by a Gaussian dipole source propagates through the CPC lattice and is probed on the other side.…”
mentioning
confidence: 99%