Amorphous Silicon Nitride: a suitable alloy for optical multilayered structures

Ricciardi, Carlo; Ballarini, V.; Galli, Mattéo; Liscidini, Marco; Andreani, Lucio Claudio; Losurdo, Maria; Bruno, Giovanni; Lettieri, S.; Gesuele, Felice; Maddalena, P.; Giorgis, Fabrizio

doi:10.1016/j.jnoncrysol.2005.10.056

Cited by 30 publications

(19 citation statements)

References 10 publications

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“…Dielectrics with suitable optical parameters are already known. The refractive index of Si 3 N 4 can be adjusted by the relative amounts of silane and ammonia during deposition [70-71]. The fabrication IDPC structures have also been reported using other methods such as layer-by-layer assembly and spin-coating methods [72-73].…”

Section: Discussionmentioning

confidence: 99%

Radiative decay engineering 6: Fluorescence on one-dimensional photonic crystals

Badugu¹,

Nowaczyk²,

Descrovi³

et al. 2013

Analytical Biochemistry

162

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During the past decade the interactions of fluorophores with metallic particles and surfaces has become an active area of research. These near-field interactions of fluorophores with surface plasmons have resulted in increased brightness and directional emission. However, using metals provide some disadvantages, like quenching at short fluorophore-metal distances, increased rates of energy dissipation due to lossy metals. These unfavorable effects are not expected in dielectrics. In this paper we describe the interactions of fluorophores with one-dimensional (1D) photonic crystals (PCs), which have alternating layers of dielectrics with dimensions that create a photonic bandgap (PBG). Freely propagating light at the PBG wavelength will be reflected. However, similar with metals, we show that fluorophores within near-field distances of the 1DPC interacts with the structure. Our results demonstrated that these fluorophores can interact with both Internal Modes (IM) and Bloch Surface Waves (BSW) of the 1DPC. For fluorophores on the surface of the 1DPC the emission dominantly occurs through the 1DPC and into the substrate. We refer to these two phenomena together as Bragg Grating-Coupled Emission (BGCE). Here we describe our preliminary results on BGCE. 1DPCs are simple to fabricate and can be handled and reused without damage. We believe BGCE provide opportunities for new formats for fluorescence detection and sensing.

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Section: Discussionmentioning

confidence: 99%

Radiative decay engineering 6: Fluorescence on one-dimensional photonic crystals

Badugu¹,

Nowaczyk²,

Descrovi³

et al. 2013

Analytical Biochemistry

162

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show abstract

“…1 the MC is almost transparent in the range investigated for SH measurements, while strong absorption losses occur for wavelength corresponding to the measured TH. In particular, ellipsometric and interferometric analysis [12] evidence that the absorption coefficient of the high refractive index layers is of the order of 10 5 cm À1 in the investigated TH range. It is therefore reasonable to infer that the effective enhancement factor for the third-order nonlinear process would be significantly larger than the observed one once the optical losses are ruled out.…”

Section: Discussionmentioning

confidence: 89%

Optical harmonic generation in amorphous silicon nitride microcavities

Gesuele¹,

Lettieri²,

Maddalena³

et al. 2006

Journal of Luminescence

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“…36 and the frequency dependent dielectric data of the silicon nitride (ε 2 ) are estimated by the means of standard optical measurements. 37 The dielectric constant of the alternating SiO 2 layers are taken to be ε 3 = 2.19. TMM simulations for TE excitation result in the reflection spectra shown in Fig.…”

Section: Experimental Verification and Versatilitymentioning

confidence: 99%

Broadband wide-angle dispersion measurements: Instrumental setup, alignment, and pitfalls

Farhang

Abasahl

Dutta-Gupta

et al. 2013

Review of Scientific Instruments

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The construction, alignment, and performance of a setup for broadband wide-angle dispersion measurements, with emphasis on surface plasmon resonance (SPR) measurements, are presented in comprehensive detail. In contrast with most SPR instruments working with a monochromatic source, this setup takes advantage of a broadband/white light source and has full capability for automated angle vs. wavelength dispersion measurements for any arbitrary nanostructure array. A cylindrical prism is used rather than a triangular one in order to mitigate refraction induced effects and allow for such measurements. Although seemingly simple, this instrument requires use of many non-trivial methods in order to achieve proper alignment over all angles of incidence. Here we describe the alignment procedure for such a setup, the pitfalls introduced from the finite beam width incident onto the cylindrical prism, and deviations in the reflected/transmitted beam resulting from the finite thickness of the sample substrate. We address every one of these issues and provide experimental evidences on the success of this instrument and the alignment procedure used.

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Amorphous Silicon Nitride: a suitable alloy for optical multilayered structures

Cited by 30 publications

References 10 publications

Radiative decay engineering 6: Fluorescence on one-dimensional photonic crystals

Radiative decay engineering 6: Fluorescence on one-dimensional photonic crystals

Optical harmonic generation in amorphous silicon nitride microcavities

Broadband wide-angle dispersion measurements: Instrumental setup, alignment, and pitfalls

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