Gold-coated split laser-induced periodic surface structures as refractometric sensors

San-Blas, Alejandro; Elshorbagy, Mahmoud H.; Olaizola, Santiago M.; Sanchez‐Brea, Luis Miguel; Rodríguez, Ainara; Hoyo, Jesús del; Soria-García, Ángela; Pastor-Villarrubia, Verónica; Alda, Javier

doi:10.1016/j.optlastec.2022.108669

Cited by 6 publications

(5 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This asymmetric line shape originates from the excitation of Fano resonance, which arises from the interference of different SP modes. Similar results were reported in previous studies using grating coupling 41 , 42 . We observed that both the dip and peak would shift with the RI change of the solution.…”

Section: Test Methodssupporting

confidence: 91%

See 1 more Smart Citation

Compact surface plasmon resonance sensor using the digital versatile disc grating as a coupler and a disperser

Wang

Cao

et al. 2023

Opt. Eng.

View full text Add to dashboard Cite

Compact surface plasmon resonance (SPR) sensors are highly demanded due to their small size, low cost, and wide application scenarios compared with benchtop sensors. To realize high-precision spectral or angular analysis, most compact SPR sensors need spectrometers or rotation stages, which increase the cost of the device. We demonstrate a low-cost and compact SPR sensor by utilizing a single grating as a coupler and a disperser. The polychromatic light emitted from a light-emitting diode was coupled to surface plasmon modes by a grating made from a digital versatile disc-recordable disc. The light was dispersed by the same grating and collected by a linear charge-coupled device. The real-time detection of the SPR spectra and the resonant wavelengths was realized by homemade software based on the laboratory virtual instrument engineering workbench. By measuring different concentrations of glucose solution and sodium chloride solution, we obtain a high refractive index (RI) resolution of 5.52 × 10 −5 RI unit. This compact SPR sensor can be applied in the areas of food safety, environmental monitoring, medical diagnosis, and so on.

show abstract

Section: Test Methodssupporting

confidence: 91%

“…Similar results were reported in previous studies using grating coupling. 41,42 We observed that both the dip and peak would shift with the RI change of the solution. Therefore, both can be used in SPR sensing.…”

Section: Software and Data Processingmentioning

confidence: 82%

Compact surface plasmon resonance sensor using the digital versatile disc grating as a coupler and a disperser

Wang

Cao

et al. 2023

Opt. Eng.

View full text Add to dashboard Cite

show abstract

“…LIPSS have also been used for the generation of surface plasmon resonances (SPR), facilitating their use in optical sensing applications, including the detection of refractive index fluctuations in gases and liquids. In a recent study by San-Blas et al, 4 gold-coated LIPSS nanostructures were successfully fabricated on stainless steel substrates through femtosecond laser nano-ablation. These experimental studies show that the topographic quality of LIPSS depends on various optical properties of the incident light beam, including its uniformity and polarization state, as well as the homogeneity of the irradiated surface.…”

Section: Introductionmentioning

confidence: 99%

Polarimetric properties of imperfect laser-induced periodic surface structures on stainless steel

Elshorbagy,

Andres-Porras,

Soria-Garcia

et al. 2024

Laser + Photonics for Advanced Manufacturing

View full text Add to dashboard Cite

The use of femtosecond laser nanostructuring to generate Laser-Induced Periodic Surface Structures (LIPSS) is a well-known and robust technology customized for a wide variety of materials. As a low-cost and high-throughput technique it can be applied in fast and large-scale manufacturing. Nevertheless, the quality of LIPSS strongly depends on the optical properties of the light beam (such as its uniformity and polarization state) and the homogeneity of the surface. Therefore, manufactured LIPSS are frequently far from ideal. A key feature of LIPSS is their ability to modulate the polarization state of transmitted or reflected radiation. In this work, we analyze how random fluctuations of LIPSS topography, and randomness of the LIPSS parameters, modify the polarimetric properties of the output beam. We have focused on LIPSS manufactured over steel surfaces. For this, we have computed the electromagnetic field reflected by the surface using a Finite Element Method for different incident polarizations. Finally, the Stokes parameters of the reflected light has been numerically computed, and compared with the ones characterizing the beam after reflection on an ideal periodic LIPSS topography.

show abstract

“…A photon sieve made of an appropriate metal is a feasible candidate to excite surface plasmon resonances. Moreover, these resonances and spectral selectivity can be generated and enhanced by nanostructuring the metallic surface 17,[20][21][22] or by adding resonant elements. 16 The response is strongly selective in wavelength allowing an adequate identification of changes in the physical and chemical properties of the analyte.…”

Section: Introductionmentioning

confidence: 99%

Permeable diffractive optical elements for real-time sensing of running fluids

Pastor-Villarrubia¹,

Soria-García

Hoyo

et al. 2023

Optical Sensors 2023

View full text Add to dashboard Cite

The real-time monitoring of physical and chemical parameters in running fluids is of importance for biomedical, biochemical, and environmental applications, such as the presence of biomarkers or chemomarkers, or the departure from some preset values of critical parameters. In this contribution we present a new generation of Permeable Diffractive Optical Elements (PDOE) based on photon sieves. In brief, the PDOE is made of passing holes properly placed on specific locations on a rigid surface. This arrangement makes PDOEs ideal to work with running fluids. Our PDOE is optimized maximizing the irradiance at is focal plane, maintaining an appropriate permeability ratio. The starting point is the classical Fresnel zone distribution. We have used two different optimization strategies to design a working PDOE: i) Particle Swarm Optimization has been applied to modify the distribution of holes on the PDOE simultaneously considering all of them; ii) an iterative minimization algorithm adding one hole at the time until filling the PDOE aperture. Both optimization algorithms generate focal spots that are compared to choose the design better suited for the proposed application. Once the PDOE is optimized and fabricated, the surface of the remaining rigid structure is nanostructured (for example using Laser Induced Periodic Surface Structures), or functionalized, to provide specific sensing capabilities. In addition, the PDOE is integrated within a pipe where the fluid under analysis circulates through. A proposal for the optoelectronic assembly of the device-including auxiliary optical elements, light sources, and detectors - is also presented in this contribution.

show abstract

Gold-coated split laser-induced periodic surface structures as refractometric sensors

Cited by 6 publications

References 33 publications

Compact surface plasmon resonance sensor using the digital versatile disc grating as a coupler and a disperser

Compact surface plasmon resonance sensor using the digital versatile disc grating as a coupler and a disperser

Polarimetric properties of imperfect laser-induced periodic surface structures on stainless steel

Permeable diffractive optical elements for real-time sensing of running fluids

Contact Info

Product

Resources

About