Waveguides in three-dimensional photonic bandgap materials for particle-accelerator on a chip architectures

Staude, Isabelle; McGuinness, C.; Frölich, Andreas; Byer, Robert L.; Colby, E.; Wegener, Martin

doi:10.1364/oe.20.005607

Cited by 23 publications

(13 citation statements)

References 15 publications

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“…Recently, there have been great attempts to make 3D photonic band gap crystals which show a 3D photonic band gap [20][21][22][23][24][25][26][27][28][29][30]. In practice a real photonic crystal is of course always finite.…”

Section: Introductionmentioning

confidence: 99%

Local density of optical states in the band gap of a finite one-dimensional photonic crystal

et al. 2014

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We study the local density of states (LDOS) in a finite photonic crystal, in particular in the frequency range of the band gap. We propose a new point of view on the band gap, which we consider to be the result of vacuum fluctuations in free space that tunnel in the forbidden range in the crystal. As a result, we arrive at a model for the LDOS that is in two major items modified compared to the well-known expression for infinite crystals. Firstly, we modify the Dirac delta functions to become Lorentzians with a width set by the crystal size. Secondly, building on characterization of the fields versus frequency and position we calculated the fields in the band gap.We start from the fields at the band edges, interpolated in space and position, and incorporating the exponential damping in the band gap. We compare our proposed model to exact calculations in one dimension using the transfer matrix method and find very good agreement. Notably, we find that in finite crystals, the LDOS depends on frequency, on position, and on crystal size, in stark contrast to the well-known results for infinite crystals. * e.yeganegidastgerdi@utwente.nl 1 arXiv:1309.5730v2 [physics.optics]

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Section: Introductionmentioning

confidence: 99%

Local density of optical states in the band gap of a finite one-dimensional photonic crystal

et al. 2014

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“…Innovations were reported wherein the amorphous silicon was converted to polycrystalline silicon [64]. Moreover, inverse woodpiles were fabricated with embedded waveguides [68,98].…”

Section: Woodpilesmentioning

confidence: 99%

Cavity quantum electrodynamics with three-dimensional photonic band gap crystals

Vos

Woldering²

2014

Light Localisation and Lasing

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Three-dimensional (3D) photonic crystals with a 3D photonic bandgap play a fundamental role in cavity quantum electrodynamics (QED), especially in phenomena where the local density of optical states is essential. We first review the current status of the fabrication of 3D photonic crystals with a bandgap at optical frequencies, corresponding to wavelengths below 2500 nm. We discuss the main implications of 3D bandgaps for cavity QED, in particular spontaneous emission inhibition of emitters embedded in a 3D bandgap crystal. Moreover, we review progress in enhanced emission of emitters placed in a photonic bandgap cavity, thresholdless laser action in a miniature photonic crystal cavity, breaking of the weak-couping limit of cavity QED. Finally, we discuss several exciting applications of 3D photonic band gap crystals, namely the shielding of decoherence for quantum information science, the manipulation of multiple coupled emitters including resonant energy transfer, lighting, and possible spin-off to 3D nanofabrication for future high-end computing.

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“…Synchronous optical modes with speed-of-light (SOL) phase velocity exist in these all-dielectric waveguides, providing necessary gradient for particle acceleration. The so-called "woodpile" photonic crystal [1] provides a base lattice for the defect waveguides to be opened upon. When built with silicon, the structure could utilize the mature photolithography fabrication techniques from silicon manufacture industry and potentially turn into mass production.…”

Section: Disk-loaded Rf Waveguide Matching Techniques Applied To Silimentioning

confidence: 99%

“…Through simulation SOL modes have been found within silicon woodpile structure (WPS) based waveguides. With strong enough coupling between these modes and the particle bunch a 300 MeV/m accelerating gradient with just 500 Watt of peak laser power at 1550 nm could be obtained [1]. In addition, various accelerator components, including laser-waveguide couplers, power transmission lines, woodpile accelerating and focusing waveguides (using quadruple-like optical modes), beam position monitors (using dipole-like modes), and energy recycling resonators, can be potentially all integrated on a single monolithic structure via lithographic fabrications.…”

Section: Disk-loaded Rf Waveguide Matching Techniques Applied To Silimentioning

confidence: 99%

Disk-loaded RF waveguide matching techniques applied to silicon woodpile accelerator

Wu¹,

England²,

Ng³

et al. 2013

AIP Conference Proceedings

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Abstract. Silicon woodpile photonic crystal provides a three-dimensional dielectric waveguide system for high-gradient laser driven acceleration. The woodpile waveguide is periodically loaded in the longitudinal direction; therefore simple cross-sectional mode profile matching is not sufficient to launch the accelerating mode appropriately and will result in significant scattering loss. Hinted by the common nature of longitudinal periodicity between disk-loaded waveguide and woodpile waveguide, several coupler design schemes developed for multi-cell RF cavity are implemented in the woodpile accelerator design. Among them there are the travelling-wave match method based on S-matrix, the periodic VSWR method, and the TE-to-TM coupling iris design. This paper presents design procedures and simulation results using these methods. According to simulations, nearly 100% power transmission between SOI and woodpile waveguides with a travelling-wave match is achieved with a specially designed mode-launching coupler. Constructed by silicon rods extruding into the defect waveguide, the coupling iris provides necessary transition from TE mode to TM accelerating mode, also with negligible coupling loss.

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Waveguides in three-dimensional photonic bandgap materials for particle-accelerator on a chip architectures

Cited by 23 publications

References 15 publications

Local density of optical states in the band gap of a finite one-dimensional photonic crystal

Local density of optical states in the band gap of a finite one-dimensional photonic crystal

Cavity quantum electrodynamics with three-dimensional photonic band gap crystals

Disk-loaded RF waveguide matching techniques applied to silicon woodpile accelerator

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