Studying the effect of quantum dots and parity-time symmetry on the magnification of topological edge state peak as a pressure sensor

Simulation study of gas sensor using periodic phononic crystal tubes to detect hazardous greenhouse gases

“…The FWHM increases from 0.25 to 0.50 Hz with the increase of the thickness of the defect tube from 0.15 to 0.25 m. As the FoM, Q-factor, and LoD are dependent parameters; their behaviors can be predicted according to Eqs. (9,10,11), as apparent in Fig. 3A-C.…”

“…As the FoM, Q-factor, and LoD are dependent parameters on sensitivity and FWHM according to Eqs. (9,10,11), their behaviors depend on sensitivity and FWHM, as clear in Fig. 3B,C.…”

“…In recent years, there has been a lot of interest in using periodic media in different acoustics 1,2 and optics applications [3][4][5][6][7][8][9][10][11][12] . Acoustic devices with good performance are vital in biosensing 13 , acoustic communication 14 , gas detection 15 , etc.…”

Studying the impact of interface roughness on a layered photonic crystal as a sensor

“…The pioneering property of PBG of the periodic structures has many applications, such as sensors, filters, switches, photonic crystal waveguides, logic gates, and various optical integrated devices [9][10][11][12][13][14][15][16]. The PhCs are now expanding numerous fields, such as quantum computing, biophotonics, and communications [11,[17][18][19]. The controllability of the PBG and optical properties depend on the use of prodigious materials, which can be modulated by external physical parameters such as magnetic field, voltage, temperature, and hydrostatic pressure [20][21][22][23][24][25].…”

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 .…”