Absolute analytical prediction of photonic crystal guided mode resonance wavelengths

Hermannsson, Pétur Gordon; Vannahme, Christoph; Smith, C. L.

doi:10.1063/1.4893664

Cited by 14 publications

(22 citation statements)

References 19 publications

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“…an iterative approach as discussed in Ref. [29]. The dispersion profiles of the LRI and HRI polymers were thus measured using variable angle spectroscopic ellipsometry, the results of which are shown in Fig.…”

Section: Device and Conceptmentioning

confidence: 99%

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All-polymer photonic crystal slab sensor

Hermannsson¹,

Sørensen²,

Vannahme³

et al. 2015

Opt. Express

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Abstract:An all-polymer photonic crystal slab sensor is presented, and shown to exhibit narrow resonant reflection with a FWHM of less than 1 nm and a sensitivity of 31 nm/RIU when sensing media with refractive indices around that of water. This results in a detection limit of 4.5 × 10 −6 RIU when measured in conjunction with a spectrometer of 12 pm/pixel resolution. The device is a two-layer structure, composed of a low refractive index polymer with a periodically modulated surface height, covered with a smooth upper-surface high refractive index inorganic-organic hybrid polymer modified with ZrO 2 -based nanoparticles. Furthermore, it is fabricated using inexpensive vacuum-less techniques involving only UV nanoreplication and polymer spin-casting, and is thus well suited for single-use biological and refractive index sensing applications.

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Section: Device and Conceptmentioning

confidence: 99%

“…The peak wavelengths of the resonant reflections can be calculated using an iterative computational model, in which the PCS is modeled as a slab waveguide with an effective core thickness t, where the propagation constant is set to the second order Bragg condition [29]:…”

Section: Device and Conceptmentioning

confidence: 99%

All-polymer photonic crystal slab sensor

Hermannsson¹,

Sørensen²,

Vannahme³

et al. 2015

Opt. Express

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“…(6). Utilizing the fact that k R is a monotonously increasing function of the grating period K, 15 an array of PCRRs with varying grating periods K can thus be established such that the resonances span the visible optical regime. By measuring the resonance wavelength exhibited by each PCRR and calculating the corresponding values of n 1 ðk R Þ, the RI dispersion of the superstrate can hence be obtained.…”

mentioning

confidence: 99%

“…It has been shown previously that the resonance wavelengths of resonant reflections exhibited by PCRRs can be accurately predicted by modeling the devices as a dielectric slab waveguides in which the propagation constant b is determined by a phase-matching condition, 14,15 which, for the case of normally incident light is given by…”

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confidence: 99%

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Refractive index dispersion sensing using an array of photonic crystal resonant reflectors

Hermannsson

Vannahme

Smith

et al. 2015

Applied Physics Letters

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Refractive index sensing plays a key role in various environmental and biological sensing applications. Here, a method is presented for measuring the absolute refractive index dispersion of liquids using an array of photonic crystal resonant reflectors of varying periods. It is shown that by covering the array with a sample liquid and measuring the resonance wavelength associated with transverse electric polarized quasi guided modes as a function of period, the refractive index dispersion of the liquid can be accurately obtained using an analytical expression. This method is compact, can perform measurements at arbitrary number of wavelengths, and requires only a minute sample volume. The ability to sense a material's dispersion profile offers an added dimension of information that may be of benefit to optofluidic lab-on-a-chip applications.

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Recent Advances in Resonant Waveguide Gratings

Quaranta

Basset

Martin

et al. 2018

Laser & Photonics Reviews

321

199

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Resonant waveguide gratings (RWGs), also known as guided mode resonant (GMR) gratings or waveguide‐mode resonant gratings, are dielectric structures where these resonant diffractive elements benefit from lateral leaky guided modes from UV to microwave frequencies in many different configurations. A broad range of optical effects are obtained using RWGs such as waveguide coupling, filtering, focusing, field enhancement and nonlinear effects, magneto‐optical Kerr effect, or electromagnetically induced transparency. Thanks to their high degree of optical tunability (wavelength, phase, polarization, intensity) and the variety of fabrication processes and materials available, RWGs have been implemented in a broad scope of applications in research and industry: refractive index and fluorescence biosensors, solar cells and photodetectors, signal processing, polarizers and wave plates, spectrometers, active tunable filters, mirrors for lasers and optical security features. The aim of this review is to discuss the latest developments in the field including numerical modeling, manufacturing, the physics, and applications of RWGs. Scientists and engineers interested in using RWGs for their application will also find links to the standard tools and references in modeling and fabrication according to their needs.

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Absolute analytical prediction of photonic crystal guided mode resonance wavelengths

Cited by 14 publications

References 19 publications

All-polymer photonic crystal slab sensor

All-polymer photonic crystal slab sensor

Refractive index dispersion sensing using an array of photonic crystal resonant reflectors

Recent Advances in Resonant Waveguide Gratings

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