Optimization of compact photonic crystal cavity using the gentle confinement method

Kjellman, Jon Øyvind; Tanemura, Takuo; Nakano, Yoshiaki

doi:10.1109/phosst.2013.6614491

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Some practical applications of high-Q PhC nanocavities are low threshold laser, 10,19 biosensors, 20 ultrasmall filters, 21 all-optical switches, 22 single-photon emitters, 23 quantum information processing, [24][25][26] etc. 17 The design approach is based on obtaining a Gaussian field distribution of cavity's resonant mode to reduce the out-of-plane radiation losses 15,16,27 and, in turn, increase the Q with not much variation in V mode . 12,25,26 In this paper, we propose a design of L3 nanocavity that is easy to realize on a two-dimensional (2-D) PhC slab with triangular air-hole lattice.…”

Section: Introductionmentioning

confidence: 99%

Design of a three-hole defect photonic crystal nanocavity with high-quality and enhanced Purcell factor

Aneja¹,

Kumar²

2015

Opt. Eng

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An easy to realize L3 photonic crystal nanocavity that exhibits ultrahigh quality factor (Q-factor), ultrasmall mode volume, and a large Q∕V mode is proposed. A resonant cavity mode at 910.625 nm wavelength with Q-factor 4.93 × 10 5 , mode volume 0.802 ðλ∕nÞ 3 , and Q∕V mode 6.15 × 10 5 ðλ∕nÞ −3 is reported. The proposed design improves Q-factor by a factor of 84 and Q∕V mode by a factor of 70 in comparison to unoptimized L3 photonic crystal nanocavity. Such a high-quality nanocavity can be used to realize a strongly interacting quantum dot-nanocavity coupled system. Aneja and Kumar: Design of a three-hole defect photonic crystal nanocavity with high-quality. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 017106-5 January 2015 • Vol. 54(1) Aneja and Kumar: Design of a three-hole defect photonic crystal nanocavity with high-quality. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms

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Section: Introductionmentioning

confidence: 99%

Design of a three-hole defect photonic crystal nanocavity with high-quality and enhanced Purcell factor

Aneja¹,

Kumar²

2015

Opt. Eng

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“…We have previously introduced a novel, strictly arealimited, optically thin PhC laser cavity design. 15,16) This design can in the future enable monolithic integration of PhC micro lasers with silicon photonics by applying it to, for example, InGaAs islands grown by micro selective-area growth on silicon. 17,18) Such laser technology is greatly sought after for diverse applications such as single-chip gas monitors, bio-sensors, and inter-and intra-chip optical interconnects.…”

Section: Introductionmentioning

confidence: 99%

Compact photonic crystal disk cavity optimized using the gentle confinement method and boundary design

Kjellman¹,

Tanemura²,

Nakano³

2015

Jpn. J. Appl. Phys.

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A compact, novel photonic crystal cavity aimed at applications with strict area limitations is presented. Optimization shows that the gentle confinement method previously used for line-defect cavities can be applied to more limited geometries. It also shows that it is paramount to consider the boundary region to minimize in-plane losses. The investigation show that a near optimum boundary thickness can be found by considering the boundary region as a Fabry-Pérot resonator. This optimization strategy is shown to be deterministic in terms of resonance wavelength. For an optimized air-clad, silicon cavity, finite-difference time-domain simulations give Q-values as high as 75,000 which is comparable to other photonic crystal cavities of similar size.

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Optimization of compact photonic crystal cavity using the gentle confinement method

Cited by 2 publications

References 7 publications

Design of a three-hole defect photonic crystal nanocavity with high-quality and enhanced Purcell factor

Design of a three-hole defect photonic crystal nanocavity with high-quality and enhanced Purcell factor

Compact photonic crystal disk cavity optimized using the gentle confinement method and boundary design

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