Guided-mode resonances in dielectric photonic crystal slabs with low index contrast

Kusserow, Thomas; Khan, Yousuf; Zamora, Ricardo; Messow, Ferdinand; Hillmer, Hartmut

doi:10.1109/omems.2012.6318857

Cited by 5 publications

(4 citation statements)

References 10 publications

(10 reference statements)

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“…In fact these results are consistent with those found in refs. 20 and 27 . Other reasons of such a disagreement can be due to fabrication tolerances such as the hole disuniformity and boundary roughness.…”

Section: Resultsmentioning

confidence: 99%

“…Another possible strategy would be to utilize 1D Distributed Bragg Reflectors (DBRs) as already reported in references 20 27 . DBRs, designed with the bandgap at the resonant mode wavelength, are able to locally confine the excited guided resonances, thus limiting the scattering losses associated to propagation outside the structured areas.…”

Section: Discussionmentioning

confidence: 99%

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Optical fiber tip templating using direct focused ion beam milling

Micco

Ricciardi

Pisco

et al. 2015

Sci Rep

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We report on a method for integrating sub-wavelength resonant structures on top of optical fiber tip. Our fabrication technique is based on direct milling of the glass on the fiber facet by means of focused ion beam. The patterned fiber tip acts as a structured template for successive depositions of any responsive or functional overlay. The proposed method is validated by depositing on the patterned fiber a high refractive index material layer, to obtain a ‘double-layer’ photonic crystal slab supporting guided resonances, appearing as peaks in the reflection spectrum. Morphological and optical characterizations are performed to investigate the effects of the fabrication process. Our results show how undesired effects, intrinsic to the fabrication procedure should be taken into account in order to guarantee a successful development of the device. Moreover, to demonstrate the flexibility of our approach and the possibility to engineering the resonances, a thin layer of gold is also deposited on the fiber tip, giving rise to a hybrid photonic-plasmonic structure with a complementary spectral response and different optical field distribution at the resonant wavelengths. Overall, this work represents a significant step forward the consolidation of Lab-on-Fiber Technology.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Optical fiber tip templating using direct focused ion beam milling

Micco

Ricciardi

Pisco

et al. 2015

Sci Rep

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“…All these properties are beneficial for application in e.g. MEMS devices or on the tip of an optical fiber [55,56].…”

Section: Fabrication Of a Photonic Crystal Based Filter Device By Temmentioning

confidence: 99%

3. Temporally shaped femtosecond laser pulses for creation of functional sub-100nm structures in dielectrics

Götte¹,

Kusserow²,

Winkler³

et al. 2015

Optically Induced Nanostructures

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Material processing of dielectrics by temporally shaped femtosecond laser pulses will be presented in this chapter. Structures with feature sizes in the sub-100 nm range are created and the motivation for their application in optical devices is given. The properties of our processing method are discussed with respect to the ionization effects of the light-matter interaction and the implemented tailored pulse shapes to address these individually. Experimental results of structures created in dielectric solids are shown. Electron densities in a water jet were studied numerically and by spectral interferometry to confirm a model for light-matter interaction. The application and characterization of fabricated patterns with regard to the implementation of an optical filter element were studied by numerical simulations and experimental methods.

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“…A study on how to achieve spectral tunability by changing the depth of gratings in a micro-ring resonator was presented in [17]. Research combining DBRs with slab waveguide PhC structures to reduce the lateral losses of resonant modes in an optical filter design was put forward in [18]. Meanwhile, Ref.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Spectral Properties of DBR-Based Photonic Crystal Structure for Optical Filter Application

et al. 2022

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In this work, the spectral properties of distributed Bragg reflector-based photonic crystal (DBR-PhC) structures were studied for the near-infrared (NIR) range. Different structural properties were varied to study their effect on the quality of the stopband and the appearance of the resonant dips in the reflection spectra of the DBR-PhC structure. The investigated structural features included the depth of PhC holes, hole radius, and number of PhC elements in the DBR structure. The 11-layered DBR structure was designed with a 2.4/1.4 refractive index contrast of alternating layers. The study aimed to achieve optical filtering properties in the DBR-PhC structure, to simplify the structural complexity of Fabry-Pérot filters by eliminating the FP cavity and upper-DBR mirror. The proposed DBR-PhC device can be used in different optical filtering and sensing applications.

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Guided-mode resonances in dielectric photonic crystal slabs with low index contrast

Cited by 5 publications

References 10 publications

Optical fiber tip templating using direct focused ion beam milling

Optical fiber tip templating using direct focused ion beam milling

3. Temporally shaped femtosecond laser pulses for creation of functional sub-100nm structures in dielectrics

Investigation of Spectral Properties of DBR-Based Photonic Crystal Structure for Optical Filter Application

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