One-dimensional photonic crystal filter using a gradient-index layer

Zaghdoudi, Jihene; Kanzari, M.

doi:10.1016/j.ijleo.2018.01.129

Cited by 16 publications

(3 citation statements)

References 18 publications

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“…69,58 One could also imagine taking advantage of Bragg mirror versatility to simultaneously incorporate resonant cavity modes in distinct frequency regimes. 48,70 A straightforward in-plane patterning approach has been used 71 to produce neighboring regions supporting different resonant tunings. The close spatial and energetic proximity of these regions supports nondiffusive unidirectional energy transport of vibration−polariton coherences with implications for quantum-enabled devices and energy funneling.…”

Section: Fabry−peŕot Cavitiesmentioning

confidence: 99%

“…Even within the confines of a parallel mirror geometry, the choice of mirror design can enable considerable freedom to examine important scientific phenomena. Use of dielectric Bragg mirrors over metallic mirrors benefits the transmission signal magnitude due to absorptive losses but reduces the coupling strength due to penetration of the cavity mode into the mirror stacks, effectively lowering the average absorber concentration over the entire mode volume. , One could also imagine taking advantage of Bragg mirror versatility to simultaneously incorporate resonant cavity modes in distinct frequency regimes. , A straightforward in-plane patterning approach has been used to produce neighboring regions supporting different resonant tunings. The close spatial and energetic proximity of these regions supports nondiffusive unidirectional energy transport of vibration–polariton coherences with implications for quantum-enabled devices and energy funneling.…”

Section: Implications and Opportunities Of Cavity Choice And Designmentioning

confidence: 99%

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Control, Modulation, and Analytical Descriptions of Vibrational Strong Coupling

2023

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Here, we review the design of optical cavities, transient and modulated responses, and theoretical models relevant to vibrational strong coupling (VSC). While planar Fabry–Perot cavities remain the most common choice for experiments involving vibrational polaritons, other choices including plasmonic and phononic nanostructures, extended lattice resonances, and wavelength-scale three-dimensionally confined dielectric cavities have unique advantages, which are discussed. Next, we review the nonlinear response to laser excitation of VSC systems revealed by transient pump–probe and 2DIR techniques. The assignment of various features observed in these experiments has been an important topic with significant recent progress and controversy. The modulation of VSC systems by various means such as ultrafast pulses and electrochemical methods is also described. Finally, theoretical approaches to understanding the physics and chemistry of VSC systems are reviewed with an eye toward their applicability and usefulness. These fall into two main categories: (1) solving for the eigenmodes of the system and (2) evolutionary techniques including the transfer-matrix method and its generalizations. The need for quantum optical methods of describing VSC systems is critically evaluated in light of current experimental work, and we discuss circumstances which necessitate consideration of the full in-plane dispersion of the Fabry–Perot cavities.

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Section: Fabry−peŕot Cavitiesmentioning

confidence: 99%

Section: Implications and Opportunities Of Cavity Choice And Designmentioning

confidence: 99%

Control, Modulation, and Analytical Descriptions of Vibrational Strong Coupling

2023

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“…The characteristics of the defect mode can be controlled by changing the defect layer's refractive index and thickness. This tunable property of the defect Photonics 2023, 10, 731 2 of 16 mode makes the defect-based 1D PhC the most researched topic due to its broad-ranging application domains such as sensing, filtering, waveguiding, agriculture, food safety, and bio-medical applications [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

An Investigation of High-Performance Pressure Sensor Employing a Polymer-Defect-Based 1D Annular Photonic Crystal

Ameen

Panda²,

Mehaney

et al. 2023

Photonics

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This study aims to theoretically address the design and analysis of an efficient pressure sensor designed using a polymer-based defective 1D annular photonic crystal (APC). The 1D APC comprises an alternate arrangement of Si and SiO2 in a cylindrical fashion, incorporating a central defect layer. The investigation of the reflectance characteristics of the proposed structure is conducted by separately considering the polystyrene (PS) and the polymethyl methacrylate (PMMA) polymer materials as the defect layer. The pressure-sensitive refractive index of the polymers and the constituent materials of the APC play a vital role in envisaging the pressure-sensing application. The cornerstone of this study is represented by the shift analysis regarding the wavelength of the defect mode inside the band gap using different applied pressures, employing the modified transfer matrix method (MTMM). Various geometrical parameters like the defect polymer layer’s thickness and the APC period were carefully optimized to achieve an improved sensing performance. The proposed design demonstrated a remarkable pressure sensitivity and FoM of 51.29 nm/GPa and 301.7 GPa−1, respectively, which is considerably high in the current research scenario. It is believed that the proposed structure can be an apt candidate for an innovative high-performance pressure sensor, and could play a key role in photonic integrated circuits.

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