Dipole lifetime in stratified media

Danz, Norbert; Waldhäusl, R.; Bräuer, Andreas; Kowarschik, R.

doi:10.1364/josab.19.000412

Cited by 57 publications

(40 citation statements)

References 19 publications

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“…in ellipsometric approaches 8 . Figure The fluorescence emitted by randomly oriented dye labels located on top of such stack is simulated rigorously by means of a transfer-matrix algorithm 17 frequently applied for the modelling of Organic LED 18 . In Figure 2(c) we show the results when the emission spectrum of the DyLight650 dye (Abcam, UK) is assumed 19 .…”

Section: Chips and Dielectric Thin Film Stackmentioning

confidence: 99%

Biosensing platform combining label-free and labelled analysis using Bloch surface waves

et al. 2015

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Bloch surface waves (BSW) propagating at the boundary of truncated photonic crystals (1D-PC) have emerged as an attractive approach for label-free sensing in plasmon-like sensor configurations. Due to the very low losses in such dielectric thin film stacks, BSW feature very low angular resonance widths compared to the surface plasmon resonance (SPR) case. Besides label-free operation, the large field enhancement and the absence of quenching allow utilizing BSW coupled fluorescence detection to additionally sense the presence of fluorescent labels. This approach can be adapted to the case of angularly resolved resonance detection, thus giving rise to a combined label-free / labelled biosensor platform. It features a parallel analysis of multiple spots arranged as a one-dimensional array inside a microfluidic channel of a disposable chip. Application of such a combined biosensing approach to the detection of the Angiopoietin-2 cancer biomarker in buffer solutions is reported.

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Section: Chips and Dielectric Thin Film Stackmentioning

confidence: 99%

Biosensing platform combining label-free and labelled analysis using Bloch surface waves

et al. 2015

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“…On the top of the 1DPC, a 30 nm thin polymeric layer (n ¼ 1.53) has been obtained by plasma polymerization deposition of acrylic acid (PPAA). 12 PPAA can expose up to 10 16 -COOH functional groups/cm 2 suitable for protein binding. Subsequently, a solution containing protein A labelled with Alexa Fluor 546 has been incubated at concentration 0.1 mg/ml for 30 min on the polymeric layer.…”

Section: 11mentioning

confidence: 99%

Bloch surface waves-controlled emission of organic dyes grafted on a one-dimensional photonic crystal

Ballarini

Frascella

Michelotti

et al. 2011

Applied Physics Letters

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An alternative route to plasmon-controlled fluorescence for improving the detection of fluorescence is proposed. In place of a metallic layer, a suitable silicon-based one-dimensional photonic crystal is used to generate a Bloch surface waves-coupled emission from a thin polymeric layer decorated with a fluorescent dye. Fluorescent radiation coupled to Bloch surface waves is strongly polarized and directional, with an angular divergence of 0.3° corresponding to a spectral bandwidth of 3 nm. Within this range, an overall signal enhancement of a factor larger than 500 is obtained as compared to a conventional glass substrate thanks to an additional enhancement mechanism based on dyes excitation via Bloch surface waves.

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“…This rigorous approach uses dyadic Green's functions to describe effects classically. Danz et al 13 extended the CPS model to the general case of arbitrary multilayer systems. According to CPS, 12 the electric field E( r) exp (−iωt) due a harmonic oscillating current distribution j ( r) exp (−iωt) in a thin-film system can be calculated by the use of the following Green's function G = G 0 + S :…”

Section: Theorymentioning

confidence: 99%

“…A more detailed analysis is given by Danz et al, 13 and the references therein. In result, the relative change in transition rate of the dipole normalized to the spontaneous emission rate in the infinite emissive medium without boundaries can be calculated.…”

Section: Theorymentioning

confidence: 99%

Comprehensive efficiency analysis of organic light-emitting devices

et al. 2011

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Abstract. We focus on the determination of the internal luminescence quantum efficiency of a green-emitting organic light-emitting diode (OLED). By considering different geometrical configurations of OLED thin-film stacks, we elucidate the role of the internal luminescence quantum efficiency of the emitter in the thin-film microcavity. Combining optical simulations with experimental results, a comprehensive efficiency analysis is performed. Here the electroluminescence of a set of OLEDs is characterized. Additionally, the devices are characterized using time-resolved photoluminescence measurements. The experimental data are analyzed using optical simulations. This analysis leads to a quantification of internal luminescence quantum efficiency and allows conclusions about competing mechanisms resulting in nonradiative recombination of charge carriers. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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Dipole lifetime in stratified media

Cited by 57 publications

References 19 publications

Biosensing platform combining label-free and labelled analysis using Bloch surface waves

Biosensing platform combining label-free and labelled analysis using Bloch surface waves

Bloch surface waves-controlled emission of organic dyes grafted on a one-dimensional photonic crystal

Comprehensive efficiency analysis of organic light-emitting devices

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