Bloch surface wave ring resonator based on porous silicon

Rodriguez, Gilberto A.; Aurelio, Daniele; Liscidini, Marco; Weiss, Sharon M.

doi:10.1063/1.5093435

Cited by 22 publications

(9 citation statements)

References 27 publications

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“…[ 19 ] Unique BSW properties including sensitive spectral‐angular resonance, [ 20 ] localization of the electromagnetic field near the surface [ 21 ] and long propagation length of several millimeters [ 22 ] are in demand for many applications such as sensing, [ 18 ] micromanipulation, [ 23 ] enhancement of magneto‐optical [ 24 ] and nonlinear‐optical [ 25 ] effects, as well as for integrated optical applications. [ 26–29 ] Placing 2D materials on the PC surface near the maximum of the electromagnetic field makes it possible to enhance significantly the observed effects. [ 30 ] Thus, an increase in absorption, [ 31,32 ] and Goos‐Hänchen shift [ 33 ] were shown when graphene was put on the PC surface.…”

Section: Introductionmentioning

confidence: 99%

Bloch Surface Wave‐Assisted Ultrafast All‐Optical Switching in Graphene

Fedyanin

Chezhegov

Rybin

et al. 2021

Advanced Optical Materials

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Graphene has ultrafast charge carrier dynamic and shows strong light–matter interaction allowing the use in photovoltaic devices, fast photodetectors, saturable absorbers, and electro‐optical modulators. However, despite the high nonlinear optical susceptibilities, the small amount of material significantly limits the use of graphene for nonlinear optical applications. In this work, Bloch surface waves (BSWs) are employed, enhancing the graphene–light interaction, for all‐optical switching realization. By placing a graphene monolayer on top of a 1D photonic crystal, it is shown that for the wavelength corresponding to the BSW resonance, the reflection coefficient is modulated on the sub‐picosecond time scale by an order of magnitude larger than that for bare graphene. The magnitude of the reflection change reaches 0.3% at the fluence of 40 µJ cm−2. The reported results are proof of priciple possibility of BSW‐assisted enhancing the reflection modulation of any 2D materials and transparent thin films while maintaining their inherent ultrafast dynamics, which is useful for the further development of all‐optical switches.

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Section: Introductionmentioning

confidence: 99%

Bloch Surface Wave‐Assisted Ultrafast All‐Optical Switching in Graphene

Fedyanin

Chezhegov

Rybin

et al. 2021

Advanced Optical Materials

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“…The possibility of guiding BSWs by simply realizing a polymeric ridge waveguide makes them appealing for the development of an etchless, all-dielectric integrated photonic platform [3]. A full 3D confinement of BSWs can be readily achieved, e.g., by bending the ridge on itself to obtain high-Q ring resonators [4].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Confinement of Visible Light in a Nanophotonic Resonator

Perani

Liscidini

2021

EPJ Web Conf.

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We report on the design of a novel nanoresonator operating at visible wavelengths, in which light confinement is achieved by a hybrid mechanism based on total internal reflection and photonic band gap. We show that this structure can support resonant nanophotonic modes with mode volumes on the order of one cubic wavelength, and Q factors exceeding several tens of thousands. Its properties make it ideal for controlling and enhancing the light-matter interaction at sub-wavelength scales.

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“…In recent years, several works have focused on the control and manipulation of guided BSWs using dielectric loads on the multilayer surface to establish a complete integrated optical platform based on PhC ridges [6][7][8][9]. Unfortunately, so far experimental works have shown propagation losses of the order of dB/mm [10][11][12].…”

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confidence: 99%

“…This is not only frustrating, as it hinders the development of an integrated optical platform based on BSWs, but also unclear from the physical standpoint. Indeed, finite-difference time-domain (FDTD) simulations of idealized structures confirm that such high losses are not due to fabrication imperfections [7], but they are intrinsically related to the kind of light confinement that relies on a combination of TIR and PBG.…”

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confidence: 99%

Long-range Bloch surface waves in photonic crystal ridges

Perani

Liscidini

2020

Opt. Lett.

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We theoretically study light propagation in guided Bloch surface waves (BSWs) supported by photonic crystal ridges. We demonstrate that low propagation losses can be achieved just by a proper design of the multilayer to obtain photonic band gaps for both light polarizations. We present a design strategy based on a Fourier analysis that allows one to obtain intrinsic losses as low as 5 dB/km for a structure operating in the visible spectral range. These results clarify the limiting factors to light propagation in guided BSWs and represent a fundamental step towards the development of BSW-based integrated optical platforms.

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Bloch surface wave ring resonator based on porous silicon

Cited by 22 publications

References 27 publications

Bloch Surface Wave‐Assisted Ultrafast All‐Optical Switching in Graphene

Bloch Surface Wave‐Assisted Ultrafast All‐Optical Switching in Graphene

Hybrid Confinement of Visible Light in a Nanophotonic Resonator

Long-range Bloch surface waves in photonic crystal ridges

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