Dispersion-flattened photonic quasicrystal optofluidic fiber for telecom C band operation

Aliee, Mahsa; Mozaffari, Mohammad Hazhir; Saghaei, Hamed

doi:10.1016/j.photonics.2020.100797

Cited by 42 publications

(5 citation statements)

References 35 publications

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“…PhCs are designed in one, two, and three-dimensional structures, whose two-dimensional structure has been considered by researchers due to its greater applications and fabrication simplicity. Research groups designed a variety of structures using two-dimensional PhCs such as optical filters [1-5], logic gates [6][7][8], encoders and decoders [9][10][11][12], comparators [13,14], multiplexers and demultiplexers [15,16], adders and subtractors [17][18][19][20][21][22][23][24], registers [25,26], memories [27][28][29], splitters [30][31][32], analog-to-digital converters [33][34][35], optical fibers [36][37][38][39][40][41][42][43], sensors [44][45][46][47][48][49][50], PhC fibers [38,…”

Section: Introductionmentioning

confidence: 99%

High-sensitivity biosensor for simultaneous detection of cancer and diabetes using photonic crystal microstructure

2021

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In this study, we propose a refractive index sensor for the simultaneous detection of cancer and diabetes based on photonic crystals (PhC). The proposed PhC composed of silicon rods in the air bed arranged in a hexagonal lattice forms the fundamental structure, and two tubes are used to place the cancerous or diabetic samples for measurement. The sensor's transmission characteristics are simulated and analyzed by solving Maxwell's electromagnetic equations using the finite-difference time-domain method for samples under study. The diagnosis of three types of cancer and diabetes is based on changing the samples' refractive index by applying the laser source centered at 1550 nm. Our results demonstrate that the proposed structure's quality factor and sensitivity can be adjusted by changing the sensor's geometry. They reveal that the transmission power is between 91% ~ 100%, depending on the sample. The sensitivity range is also between 1294 and 3080 nm/RIU. The maximum figure of merit is about 1550.11 RIU -1 with a detection range of 31×10 -6 RIU. The small biosensor area of 61.56 µm 2 makes it a suitable device for various applications in compact photonic integrated circuits.

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Section: Introductionmentioning

confidence: 99%

High-sensitivity biosensor for simultaneous detection of cancer and diabetes using photonic crystal microstructure

2021

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“…5, which contains three input ports. Therefore, according to the computation principle, we have 2 3 (2 N , N is the number of input ports) different input states. The optical power of the input ports is equal to 1W/mm 2 .…”

Section: Simulation Resultsmentioning

confidence: 99%

A novel design of all-optical full-adder using nonlinear X-shaped photonic crystal resonators

Naghizade¹,

Saghaei²

2021

Opt Quant Electron

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This paper proposes a new all-optical full-adder design based on nonlinear X-shaped photonic crystal (PhC) resonators. The PhC-based full-adder consists of three input ports, two X-shaped PhC resonators (X-PCRs), and two output ports. The dielectric rods made of silicon and nonlinear rods composed of doped glass are used to design the X-PCRs. Two well-known plane wave expansion and nite difference time domain methods are applied to study and analyze the photonic band structure and light propagation inside the PhC, respectively. Our numerical results demonstrate when the incoming light intensity increases, the nonlinear Kerr effect appears and manages the direction of light propagation inside the structure. The maximum time delay and footprint of the proposed full-adder are about 2.5ps and 663 μm 2, making it an appropriate adder for high-speed data processing systems.

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“…Thus, waveguides in a PhC can be created by removing one or more rows of dielectric rods. PhC-based structures are excellent choices for designing many types of optical devices such as optical filters [3][4][5][6][7][8], PhC fibers [9][10][11][12][13][14][15][16][17][18], multiplexers and demultiplexers [19][20][21][22][23][24][25][26], encoders and decoders [27][28][29][30], switches [31][32][33][34][35][36], logic gates [37][38][39][40][41][42], analog to digital converters (ADCs) [43][44][45][46][47][48][49], and sensors [50]…”

Section: Photonic Sensorsmentioning

confidence: 99%

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

et al. 2020

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In view of the large scientific and technical interest in the MEMS accelerometer sensor and the limitations of capacitive, resistive piezo, and piezoelectric methods, we focus on the measurement of the seismic mass displacement using a novel design of the all-optical sensor (AOS). The proposed AOS consists of two waveguides and a ring resonator in a two-dimensional rod-based photonic crystal (PhC) microstructure, and a holder which connects the central rod of a nanocavity to a proof mass. The photonic band structure of the AOS is calculated with the plane-wave expansion approach for TE and TM polarization modes, and the light wave propagation inside the sensor is analyzed by solving Maxwell’s equations using the finite-difference time-domain method. The results of our simulations demonstrate that the fundamental PhC has a free spectral range of about 730 nm covering the optical communication wavelength-bands. Simulations also show that the AOS has the resonant peak of 0.8 at 1.644µm, quality factor of 3288, full width at half maximum of 0.5nm, and figure of merit of 0.97. Furthermore, for the maximum 200nm nanocavity displacements in the x- or y-direction, the resonant wavelengths shift to 1.618µm and 1.547µm, respectively. We also calculate all characteristics of the nanocavity displacement in positive and negative directions of the x-axis and y-axis. The small area of 104.35 µm2 and short propagation time of the AOS make it an interesting sensor for various applications, especially in the vehicle navigation systems and aviation safety tools.

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Dispersion-flattened photonic quasicrystal optofluidic fiber for telecom C band operation

Cited by 42 publications

References 35 publications

High-sensitivity biosensor for simultaneous detection of cancer and diabetes using photonic crystal microstructure

High-sensitivity biosensor for simultaneous detection of cancer and diabetes using photonic crystal microstructure

A novel design of all-optical full-adder using nonlinear X-shaped photonic crystal resonators

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

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