Consequence of Fibonacci quasiperiodic sequences in 1-D photonic crystal refractive index sensor for the blood plasma and cancer cells detections

Abstract

We present the consequences of different Fibonacci quasiperiodic sequences on the sensing performance of a one-dimensional (1D) photonic crystal (PC) based sensor to detect the blood plasma and cancer cells. We demonstrate that the sensitivity and gure of merit (FOM) of the sensor can be modulated, respectively, from 427.5 nm/RIU to 530 nm/RIU and from 162.5 RIU − 1 to 2983.33 RIU − 1 by utilizing the pertinent sensor structures with Fibonacci generation and structural parameters for the analyte refractive index from 1.31 to 1.41. We have also shown that the operational sensing wavelengths and sensitivity can be changed signi cantly by introducing the different Fibonacci sequences in the proposed sensor. The sensing peaks separation, FWHM, and sensitivity can also be tuned by changing the analyte and PC stacked layers' thicknesses. We also introduce the sensing performances for the Blood plasma and Cancer cells detection using the proposed Fibonacci quasiperiodic PC sensor. We observe that the maximum sensitivities and FOM of the proposed sensor are 552.5 nm/RIU and 2986.93 RIU − 1 for cancer cells and 553.55 nm/RIU and 2214.21 RIU − 1 for blood plasma, respectively. The proposed structure reveals the tunable sensing performances and stimulates the fabrication interest.

A promising ultra-sensitive CO2 sensor at varying concentrations and temperatures based on Fano resonance phenomenon in different 1D phononic crystal designs

“…The quasi-periodic PnCs structure is designed according to the stacking rule, which is covered in the analyzed structures section. The structures of quasi-periodic lack translational symmetry, introducing periodic structures of extraordinary ordering patterns, and providing an extra freedom in constructing and controlling the characteristics of the structure 69 , 71 – 74 . As a result, the acoustic wave’s ability to propagate through these structures is increasingly attenuated because of the additional degree of freedom it has within them 65 , 71 – 74 .…”

“…The structures of quasi-periodic lack translational symmetry, introducing periodic structures of extraordinary ordering patterns, and providing an extra freedom in constructing and controlling the characteristics of the structure 69 , 71 – 74 . As a result, the acoustic wave’s ability to propagate through these structures is increasingly attenuated because of the additional degree of freedom it has within them 65 , 71 – 74 . The proposed visualization of the quasi-periodic PnCs design is [ABADABA] and [ABAABDABAAB], where (A) describes lead, and (B) describes epoxy.…”

Theoretical and Experimental Study of Optical Losses in a Periodic/Quasiperiodic Structure Based on Porous Si-SiO2

“…Parameters to obtain Rayleigh scattering losses in PS using the model presented in [15]. Where p is the mean porosity of the sample, a ⊥ is the crystalline Si wire's typical radius and a is the typical wire length, (δε) 2 v is the volume-averaged of the porous material dielectric constant, ε * is the weighted average dielectric constant, ω 0 is the angular frequency of the localized mode, and D(ω 0 ) is the density of photon states. As a result, we found in Table 5 that the lifetime of photons in the PS structure is less than that of photons in the porous Si-SiO 2 structure.…”

“…Central to these advancements are periodic and quasiperiodic structures (PQS), which exhibit fascinating optical properties that have captivated researchers for decades. Periodic and quasiperiodic structures have gathered significant attention in modern science and engineering due to their diverse applications in communication, medical diagnostics, gas sensors, photoluminescent bio-imaging, and drug delivery systems [1][2][3][4]. These structures' the scattering losses in these structures is a challenging yet vital endeavor.…”

Tunable multichannel Fibonacci one-dimensional terahertz photonic crystal filter

“…These structures have both periodic and random features, and their transmission spectra show isolated high-quality factor peaks, multiple PBGs, and periodic defects. The development of many optoelectronic devices, such as optical filters 34 , fibers 35 , wavelength division multiplexing 36 , sensors [37][38][39][40][41][42][43] , and laser diodes 44,45 , which are exploited in diverse optical communication applications, is facilitated by all these properties. Moreover, due to the rise in the number of wavelengths sent and received in communication channels, as well as the compact form of these components, the use of tunable filters in wavelength distribution systems has recently attracted a lot of interest 46,47 .…”