Complex band structure and evanescent wave propagation of composite corrugated phononic crystal beams

Jiang, Tengjiao; Han, Qiang; Li, Chunlei

doi:10.1007/s00707-023-03522-5

Cited by 1 publication

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the present analysis done with different sorts of materials to realize an accurate investigation of biomedical parameter. In addition, a literature survey related to the working of PCs configuration is appropriately explored [4]. In [5], a design with intensively resolution is introduced to detect the hemoglobin in human blood.…”

Section: Introductionmentioning

confidence: 99%

A High Selective and Q Factor 4-Channel All Optical Demultiplexer: Numerical and Analytical Evaluation

Vali‑Nasab,

Hasanvand,

Mir

et al. 2024

Preprint

View full text Add to dashboard Cite

Photonic crystals (PCs) are a field that is very important and interested in the design of a wide range of devices to control electromagnetic waves in different frequency regimes. Here, We try to introduce an all-optical device with practical applications such as fast response and high accuracy that have very critical and benchmark development in optical devices for photonic integrated circuits. In this paper, a novel modified shape 4-channel demultiplexer based on 2D-PCs by using suitable ring resonators is proposed to control light. The presented configuration includes three parts such as a direct input waveguide, a ring resonator, and four indirect waveguides for outputs of optical waves. Numerical analysis is investigated based on finite difference time domain (FDTD) method to achieve a four-band demultiplexer that has the capability to control the electromagnetic waves. Numerical results show that not only average quality factor (Q) of the 2D-PCs demultiplexer is 3969.25, but also average cross-talking value is -30.38 dB, the average transmission coefficient (T) is 0.998 and the lowest and highest channel bandwidths are 0.3 and 0.6 nm, respectively. Also, the minimum and maximum distance between any two adjacent channels is 0.6 and 1.1 nm. The all optical photonic demultiplexer has a compact footprint and occupies an area of 302 µm² and its operation is in long wavelength region. Based on the abovementioned practical performance and results, the presented optical demultiplexer is highly accurate by using a robust and low power-area that can be nominated to use photonic integrated circuits (PIC).

show abstract

Section: Introductionmentioning

confidence: 99%