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Research Interests:
Research Interests:
Research Interests:
A fiber-optic pH sensor based on evanescent wave penetration is presented. Evanescent wave penetration is generated by removing the clad and contact the core with the solution. Testing samples were perpetrated by add a strong acid (HCL)... more
A fiber-optic pH sensor based on evanescent wave penetration is presented. Evanescent wave penetration is generated by removing the clad and contact the core with the solution. Testing samples were perpetrated by add a strong acid (HCL) or a strong base (NaOH) at distilled water to produce different value of pH (from 4 to 13). To determine the absorption or transmission of the evanescent waves, that generate after where obtained on appropriate calibration curve to determine a wide range of pH, by using pH indicators. Where using methyl red, by add fixed amounts of this dyes to the water samples were obtained on samples with colors vary with pH values. Calculate the transmission and absorption with draw a relationship between the transmissions or absorption with the pH values, to obtain on suitable curves, considered as calibration curves. Calibration curve for methyl red is best, where extends (from 4 to 12) for pH value. Can calculate the pH value for any water sample to tested, by...
Synthesis of titanium dioxide (TiO2) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form... more
Synthesis of titanium dioxide (TiO2) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form the sol. Then, at 50 heating and ageing was applied to form stable sol-gel . Every glass substrate dipping in sol-gel beaker for period time (1,3,5)min respectively, for obtaining different thickness films. To evaluate the performance of films, After annealing at 500 the crystallinity of the films was determined by using the x-ray diffractometer (XRD). The change on the surface morphology was observed using Atomic Force Microscope(AFM). Finally, Optical properties measurements Absorbance (A) and transmittance(T)) for (TiO2) films were studied by UV-Visible spectrometer. analysis on the films. It has been successfully shown that the anatase crystalline phase was observed when the TiO2 thin film was annealing at 500°C. The roughness and the crystalli...
Research Interests:
Research Interests:
Synthesis of titanium dioxide (TiO2) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form... more
Synthesis of titanium dioxide (TiO2) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form the sol. Then, at 50 heating and ageing was applied to form stable sol-gel . Every glass substrate dipping in sol-gel beaker for period time (1,3,5)min respectively, for obtaining different thickness films. To evaluate the performance of films, After annealing at 500 the crystallinity of the films was determined by using the x-ray diffractometer (XRD). The change on the surface morphology was observed using Atomic Force Microscope(AFM). Finally, Optical properties measurements Absorbance (A) and transmittance(T)) for (TiO2) films were studied by UV-Visible spectrometer. analysis on the films. It has been successfully shown that the anatase crystalline phase was observed when the TiO2 thin film was annealing at 500°C. The roughness and the crystalli...
Research Interests:
Synthesis of titanium dioxide (TiO2) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form... more
Synthesis of titanium dioxide (TiO2) Thin film on three microscope glasses using solgel method has been studied intensively. The starting materials were titanium(III)chloride, Ammonium Hydroxide. The components were mixed together to form the sol. Then, at 50 heating and ageing was applied to form stable sol-gel . Every glass substrate dipping in sol-gel beaker for period time (1,3,5)min respectively, for obtaining different thickness films. To evaluate the performance of films, After annealing at 500 the crystallinity of the films was determined by using the x-ray diffractometer (XRD). The change on the surface morphology was observed using Atomic Force Microscope(AFM). Finally, Optical properties measurements Absorbance (A) and transmittance(T)) for (TiO2) films were studied by UV-Visible spectrometer. analysis on the films. It has been successfully shown that the anatase crystalline phase was observed when the TiO2 thin film was annealing at 500°C. The roughness and the crystalli...
Research Interests:
A diaphragm-based Fapry-Perot interferometry (FPI) fiber optic sensor that uses a super luminescent emitting diode (SLED) source was designed and tested for on-line detection of the acoustic waves. The single-mode fiber (SMF) and a... more
A diaphragm-based Fapry-Perot interferometry (FPI) fiber optic sensor that uses a super luminescent emitting diode (SLED) source was designed and tested for on-line detection of the acoustic waves. The single-mode fiber (SMF) and a diaphragm use as sensors, SMF captured in a glass tube to form an extrinsic Fabry–Perot interferometer (FPI). Investigation fallouts show that this optical fiber acoustic-optics sensor is suitable and efficient for sensing acoustic signals by the vibrated diaphragm and the advantage fiber has a high bandwidth and sensitivity.
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In this paper, we propose nanodiamond (ND) material as a saturable absorber (SA) to generate short pulses from a mode-locked erbium-doped fiber laser (EDFL). The ND-SA is fabricated by the drop-casting method using... more
In this paper, we propose nanodiamond (ND) material as a saturable absorber (SA) to generate short pulses from a mode-locked erbium-doped fiber laser (EDFL). The ND-SA is fabricated by the drop-casting method using polyvinyledenedifluoride–trifluoroethylene as a host polymer and methyl ethel ketone as a solvent liquid. The SA, which possesses 20% ND concentration, has a 5.46% modulation depth with 2000 M W / c m 2 saturation intensity. Sequentially, the performance of the EDFL is investigated after integrating an ND-SA within the laser ring. The results reveal that the presented ND-SAs produce stable ultrashort laser pulses. Moreover, the fabricated ND film is a promising solid film for many photonic schemes. The proposed mode-locked EDFL-based ND-SA starts a mode-locking operation at a pumped power of 116 mW. The generated mode-locked pulses have a pulse duration of 0.84 ps, a repetition rate of 1.93 MHz, and a power of 0.517 mW, at a pumped power of 187 mW. Finally, to the best of...
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In this paper the study of Frequency Modulation (FM) mode-locking fiber laser is presented. The time-domain ABCD law was employed to clarify the impacts of optical elements on the mode-lock pulses. ABCD matrices formalism in the time... more
In this paper the study of Frequency Modulation (FM) mode-locking fiber laser is presented. The time-domain ABCD law was employed to clarify the impacts of optical elements on the mode-lock pulses. ABCD matrices formalism in the time domain has been developed under a Gaussian paraxial approximation. Also, these matrices apply to the theory of the actively mode-locked fiber laser. The numerical results are obtained by using MATLAB software. The analysis was produced a shorter than 3.16ps duration pulses in laser mode locked with FM modulator driven at repetition frequency of 10GHz and cavity has anomalous dispersion of 0.015ps/m and nonlinearity of 0.02Wm. The values of chirp are plotted versus average power with many values of dispersion. All relationship between the pulse laser parameters and other effective parameters like, second order dispersion, nonlinearity, average input power, repetition frequency and optical filter bandwidth are plotted and discussed. Keyword: FM mode locki...
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Research Interests:
With increased water pollution, the monitoring of the concentration of heavy metal elements in the aquatic environment becomes essential. The detection of these elements requires rapid, simple, sensitive, and selective detection... more
With increased water pollution, the monitoring of the concentration of heavy metal elements in the aquatic environment becomes essential. The detection of these elements requires rapid, simple, sensitive, and selective detection procedures. Fiber optic sensing probes provide these procedures because of their unique advantages superior to traditional sensing probes. In this paper, fabrication of Localized Surface Plasmon Resonance based fiber optic sensing probe for cadmium detection in an aqueous solution is reported. The sensing probe consists of a Singlemode fibercoreless fiber opticSinglemode fiber structure coated with gold nanoparticles colloid. The maximum fiber optic sensing probe sensitivity obtained was 1.97 nm/ppm between (0 and 4) ppm.
Zinc is one of the minerals that directly affects the defense system of the human body, and here lies its importance from the healthy side. Photonic Crystal Fiber (PCF) was used as sensor for Zinc concentration in both male and female... more
Zinc is one of the minerals that directly affects the defense system of the human body, and here lies its importance from the healthy side. Photonic Crystal Fiber (PCF) was used as sensor for Zinc concentration in both male and female human serum, two design of PCF used 127.5µm and 60µm radius of cladding to show the effect of reducing PCF dimension on the sensitivity, 60µm PCF radius of cladding has the highest sensitivity for all change in zinc concentration in 116.6 +/-55.2 µg/100mL male and 105.2 +/-66.9 µg/100mL The design results demonstrated that the zinc component values in the male serum are higher than the females and the sensitivity of the change is that the zinc element concentration in females is greater than that in males where sensitivity to females has been obtained 0.007*100 mL*nm/µg while for male 0.009*100 mL*nm/µg the zinc concentration in male serum show positive increase in age pass through while in female the zinc concentration in serum show negative increase ...
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In this work, fabrication of Localized Surface Plasmon Resonance based fiber optic sensing probe for cadmium detection in an aqueous solution is reported. Multimode fiber-photonic crystal fiber-multimode fiber structure coated with gold... more
In this work, fabrication of Localized Surface Plasmon Resonance based fiber optic sensing probe for cadmium detection in an aqueous solution is reported. Multimode fiber-photonic crystal fiber-multimode fiber structure coated with gold nanoparticles make up this probe. The proposed sensor's sensitivity is 1.564 nm/ppm. Furthermore, the sensor is small in size, immune to electromagnetic interference, making it ideal for a wide range of harsh environments and real-time measurement.
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Zinc is one of the important material in human blood because of its effect in defensive system work for properly and it plays an important role in growth, wound healing Medically zinc concentration effect directly in skin health so... more
Zinc is one of the important material in human blood because of its effect in defensive system work for properly and it plays an important role in growth, wound healing Medically zinc concentration effect directly in skin health so it's important to make a sensor for discover zinc and its concentration change in human blood for each of male and female. Optical fibers are used as a sensor for detecting zinc and its concentration by transmitted laser signal through the optical fiber by using different types (single mode fiber SMF, photonic crystal fiber PCF) by studying the results of output laser the detection can be seen for zinc concentration change, the design of small PCF which the same LMA_10 but smaller in its radius of core and cladding even the distance between cores. The smallest PCF size has the best detection for all zinc concentration change in blood all that was done by comsol Multiphysics 5.4 simulation program
X-ray is electromagnetic wave pass through all human tissue and show tissue image by black and white, and the explosion for x ray in short treatment may cause cancer, Photonic crystal fiber used as detector for x- ray approximate... more
X-ray is electromagnetic wave pass through all human tissue and show tissue image by black and white, and the explosion for x ray in short treatment may cause cancer, Photonic crystal fiber used as detector for x- ray approximate effective radiation dose for human bone for spine x- ray 1.5 mSv which need 6month to repeat the exposure and extremity (foot, hand and etc.) x-ray 0.001 mSv need to 3 hours to repeat exposure , the change in x ray dose can be detected by measuring the change in wavelength shifting of laser 450nm which pass through photonic crystal fiber and effected by the emission of x-ray to record the small change in x-ray dose and save the human from radiation and this sensor is small compact and easy to use and have high sensitivity for x -ray used to measure the bone x-ray as its value lower than other x-ray used in others tissue. Index Terms— photonic crystal fiber, sensor ,x- ray, laser.
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This paper provides securing flowing of data in optical systems through encoding and steganography. Encoding (Cryptography) and steganography are major elements for secure the data. Suggested communication system aids for transporting... more
This paper provides securing flowing of data in optical systems through encoding and steganography. Encoding (Cryptography) and steganography are major elements for secure the data. Suggested communication system aids for transporting huge volumes of information of quickly and reliably. This communication system has previously displayed unrivalled characteristics of most secure. Secure connection requires the integration of cryptography and steganography, so it is very difficult to penetrate it. The system program uses cryptography and steganography to merge any type from files and encrypted text that are effectually hidden for human eye with a carrier image. Also, the extra purpose from this paper is to procure the threshold losses of the optical system and introduce a new approach to create an ideal system that can effectively secrete a message that includes important information, if and only if the optical cable losses increase by its threshold magnitude.
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Abstract In this research, two crystalline optical fiber sensors were designed to detect an X-ray exposure dose for the abdominal cross-section imaging. Use solid crystal fibers in the design. A sensor is designed to detect abdominal... more
Abstract In this research, two crystalline optical fiber sensors were designed to detect an X-ray exposure dose for the abdominal cross-section imaging. Use solid crystal fibers in the design. A sensor is designed to detect abdominal X-ray radiation where the X-ray doses are high, (computerized tomography (CT), intravenous pyelography (IVP), barium enema (low X-ray GI), study of the upper digestive system with barium). Optical crystal fiber (PCF) was used to detect the intensity of X-rays, the first design was the diameter of the crystal fiber 127.5 μm, while the second design reduced the diameter to 60 μm. The results showed the photon crystal fiber fractionation increases the sensitivity of detecting all variable X-ray doses. We tested the first design by exposing a bundle of the abdominal X-ray to the abdominal segment and proven successful in sensitivity and sensitivity (3.04 nm/mSv). To improve the sensor's work, we developed a second design by reducing the diameter of the crystalline fibers (the waist) to fibers, which proved successful in the few ranges that we could not sense in The first design and we got a sensitivity (1.002 nm/mSv).
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Research Interests:
In this study, a fiber optic sensing probes based on localized surface Plasmon resonance was presented to detect various Heavy metal zinc concentrations in an aqueous solution. The fiber optic sensing probe consists of a single mode... more
In this study, a fiber optic sensing probes based on localized surface Plasmon resonance was presented to detect various Heavy metal zinc concentrations in an aqueous solution. The fiber optic sensing probe consists of a single mode fiber-coreless fiber-single mode fiber structure coated with a 40 nm thickness of gold nanoparticles - polyvinyl pyrrolidone using an immersion method. The results obtained in the experiment showed that the sensor's sensitivity is 1.38 nm/ppm in the range of 0 to 6 ppm concentrations.