Localized Guided-Mode and Cavity-Mode Double Resonance in Photonic Crystal Nanocavities

Liu, X.; Shimada, Takashi; Miura, Ryohei; Iwamoto, Satoshi; Arakawa, Yasuhiko; Kato, Yuichiro

doi:10.1103/physrevapplied.3.014006

Cited by 16 publications

(19 citation statements)

References 26 publications

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“…More specifically, microcavities can be used to compensate for onchip power coupling limitations [19] to facilitate opti-cal coherent control schemes, [20] generate on-chip frequency conversion, [21] and improve rates of absorption and fluorescence. [22] [23] [24] In this work, we utilize cavity resonant excitation to increase the photoluminescence (PL) count rate, optically detected magnetic resonance (ODMR) signal intensity, and rate of spin state initialization for Ky5 defect spin ensembles incorporated into 3C-SiC photonic crystal cavities. Furthermore, we use these signal improvements and techniques to study inhomogeneity in the Ky5 defect spin and optical properties and extract estimates of the defects' sublevel transition rates.…”

Section: Introductionmentioning

confidence: 99%

Cavity-Enhanced Measurements of Defect Spins in Silicon Carbide

2016

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The identification of new solid-state defect qubit candidates in widely used semiconductors has the potential to enable the use of nanofabricated devices for enhanced qubit measurement and control operations. In particular, the recent discovery of optically active spin states in silicon carbide thin films offers a scalable route for incorporating defect qubits into on-chip photonic devices. Here we demonstrate the use of 3C silicon carbide photonic crystal cavities for enhanced excitation of color center defect spin ensembles in order to increase measured photoluminescence signal count rates, optically detected magnetic resonance signal intensities, and optical spin initialization rates. We observe up to a factor of 30 increase in the photoluminescence and ODMR signals from Ky5 color centers excited by cavity resonant excitation and increase the rate of ground-state spin initialization by approximately a factor of two. Furthermore, we show that the small excitation mode volume and enhanced excitation and collection efficiencies provided by the structures can be used to study inhomogeneous broadening in defect qubit ensembles. These results highlight some of the benefits that nanofabricated devices offer for engineering the local photonic environment of color center defect qubits to enable applications in quantum information and sensing.

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Section: Introductionmentioning

confidence: 99%

Cavity-Enhanced Measurements of Defect Spins in Silicon Carbide

2016

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“…Silicon exhibits an indirect electronic band edge at ~1.12 eV (equivalent to ~1100 nm in terms of wavelength) with correspondingly weak extracted PL emission. Nano-cavities in two dimensional (2D) silicon PhCs can thereby significantly increase the measured PL intensity 11 12 13 14 ; however, such miniscule and narrowband sources can be difficult to multiplex. Furthermore, efficient light emission results from the excitation of only a small, nanoscale area of the device, and fabricating high quality nano-cavities remains a formidable challenge 15 Instead, tuning the extended band-structure of 2D PhCs provides another means for increasing PL intensity throughout a planar device.…”

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confidence: 99%

Maximizing Photoluminescence Extraction in Silicon Photonic Crystal Slabs

Mahdavi

Sarau

Xavier

et al. 2016

Sci Rep

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Photonic crystal modes can be tailored for increasing light matter interactions and light extraction efficiencies. These PhC properties have been explored for improving the device performance of LEDs, solar cells and precision biosensors. Tuning the extended band structure of 2D PhC provides a means for increasing light extraction throughout a planar device. This requires careful design and fabrication of PhC with a desirable mode structure overlapping with the spectral region of emission. We show a method for predicting and maximizing light extraction from 2D photonic crystal slabs, exemplified by maximizing silicon photoluminescence (PL). Systematically varying the lattice constant and filling factor, we predict the increases in PL intensity from band structure calculations and confirm predictions in micro-PL experiments. With the near optimal design parameters of PhC, we demonstrate more than 500-fold increase in PL intensity, measured near band edge of silicon at room temperature, an enhancement by an order of magnitude more than what has been reported.

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“…Light‐emitting devices based on electro‐ and photoluminescent properties of semiconducting single‐wall carbon nanotubes (s‐SWCNTs) have been developed and optical gain in CNTs has been measured . In order to overcome the relatively low quantum efficiency of SWCNTs, several studies have coupled SWCNT photoluminescence (PL) to optical cavities (Fabry–Perot planar cavity based on metallic or Bragg mirrors, micro‐ring or microdisk resonators, and photonic crystals, and the resulting luminescence enhancement factor can reach a few orders of magnitude.…”

Section: Linear Refractive Index Values Of Pfh‐a and Pfh‐a/swcnt Filmmentioning

confidence: 99%

Guided Photoluminescence from Integrated Carbon‐Nanotube‐Based Optical Waveguides

Bodiou

Guezo

et al. 2015

Advanced Materials

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Thin films and ridge waveguides based on large-diameter semiconducting single-wall carbon nanotubes (s-SWCNTs) dispersed in a polyfluorene derivative are fabricated and optically characterized. Ridge waveguides are designed with appropriate dimensions for single-mode propagation at 1550 nm. Using multimode ridge waveguides, guided s-SWCNT photoluminescence is demonstrated for the first time in the near-infrared telecommunications window.

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Localized Guided-Mode and Cavity-Mode Double Resonance in Photonic Crystal Nanocavities

Cited by 16 publications

References 26 publications

Cavity-Enhanced Measurements of Defect Spins in Silicon Carbide

Cavity-Enhanced Measurements of Defect Spins in Silicon Carbide

Maximizing Photoluminescence Extraction in Silicon Photonic Crystal Slabs

Guided Photoluminescence from Integrated Carbon‐Nanotube‐Based Optical Waveguides

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