Non-linear optical properties of α-glycine single crystals by Z-Scan technique

Sivanesan, T.; Natarajan, V.; Pandi, S.

doi:10.17485/ijst/2010/v3i6.5

Cited by 11 publications

(4 citation statements)

References 2 publications

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“…Non-linear absorption coefficients calculated from curves of transmittance using equation ( 7) [11]: (7) where T represent the peak value at open aperture curve, β is the non-linear absorption coefficient. β will be in positive values for saturation absorption and in negative values for two-photon absorption [17]. Non-linear optical susceptibility for real and imaginary parts  (3) for third order can be determined from experimental observation of n 2 and β due to the following [18]:…”

Section: Methodsmentioning

confidence: 99%

INVESTIGATING THE NONLINEAR OPTICAL PROPERTIES OF CuS THIN FILMS PREPARED BY CHEMICAL BATH DEPOSITION USING Z-SCAN TECHNIQUE

HUSSAIN¹,

HADI²,

NAJIM³

2020

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CuS thin films were participated onto glass substrate by using chemical Bath Deposition method at (75οC) for (1hr) with different concentrations (0.03,0.05 and 0.08)M of Thiourea (TU) and Copper Chloride with molar ratio (0.01 ) have been used for solution preparation. As deposition and annealed films were studied. Non-linear absorption coefficient is measured by using Z-Scan technology and it consists of two sections. The first section is closed opening were located before detector to calculate the non-linear refractive index. Whereas the second section, were aperture located before the detector (the open aperture) is taken to calculate the non-linear absorption coefficient. Both cases are done with a CW laser with a wavelength of 650 nm and a power of 50 MW

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Section: Methodsmentioning

confidence: 99%

INVESTIGATING THE NONLINEAR OPTICAL PROPERTIES OF CuS THIN FILMS PREPARED BY CHEMICAL BATH DEPOSITION USING Z-SCAN TECHNIQUE

HUSSAIN¹,

HADI²,

NAJIM³

2020

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“…The first parameter can be determined from the absorbance measurements; it is the absorption coefficient (α), it can be calculated depending on the Eq. 3 below 20 : α o = 2.303(A/d) 3 Where (A) is the absorbance and (d) represents the path length 22 . Fig.…”

Section: Figure 3 the Relationship Between The Magnitudes Of The Transmittance With The Range Of The Concentration Of Coumarin 334 Using mentioning

confidence: 99%

Spectral Behaviour of the low concentrations of Coumarin 334 with Broadband Cavity Enhanced Absorption Spectroscopy

2022

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The current research is a spectroscopic study of Coumarin 334 dissolved in methanol. The range of concentrations of the prepared stock solution was (3.39x10 -9 to 2.03x10 -8 ) M. Some optical characteristics of this dye were investigated such as absorbance and transmission spectra, absorption coefficient, refractive and extinction coefficients, oscillation and dispersion energies, and energy band gap. The absorbance spectra were recorded at 452 nm using Broad Band Cavity Enhanced Absorption Spectroscopy (BBCEAS) which depends on increasing the path length of the traveling light from the source to the detector. The minimum absorbance amount was 0.07 with a low concentration of 3.39x10 -9 M. As a result, the other optical properties were calculated on the basis of the lowest values of absorbance. The energy band gap, which is important to detect the electronic band structure of the material, was determined; it was found to be equal to ~2.55 eV. The low values of the concentration made less collision between the molecules in the materials and the incident light. This led to a reduction in the background noise and in the percentages of losses. Furthermore, the dispersion and single oscillator energies, which help to calculate the average strength of the inter-band optical transitions and to prepare the quantifiable information about the band structure of the material, were calculated to reduce with the increasing concentrations. The refractive and extinction coefficients were determined because they are considered important factors for the optical materials and found to increase with the increasing concentrations. As a result, the study of the optical behavior of Coumarin 334 highlighted the promising materials for photonics applications at very low concentrations. All these properties are considered the main factors to determine the usefulness of the materials in advanced applications and to develop the performance of the devices which depend on the optical characteristics.

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“…It is the ratio of decrease in the incident beam on the matter of accordance with the distance towards spread the wave inside the matter. Which can be found from the curved transmission (Sivanesan et al, 2010):…”

Section: Absorption Coefficient (α O )mentioning

confidence: 99%

Study of the Effect of PANI Polymer on the Optical Properties of Malachite Green Dye

Aboud¹,

Mohammad²,

Jassim³

2019

J. Eng. Appl. Sci.

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In this research involves the study the optical properties of malachite green dye films prepared by laser pulse deposition method including absorbance, transmittance, absorption coefficient, refractive index and energy gap. This research also involves the study of the optical properties of malachite green dye films doping with PANI polymer and its effect on optical properties also involves some opinions and discussions that are related to the clarification of the effect of PANI polymer on the optical propertiesfor this dye.

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Non-linear optical properties of α-glycine single crystals by Z-Scan technique

Cited by 11 publications

References 2 publications

INVESTIGATING THE NONLINEAR OPTICAL PROPERTIES OF CuS THIN FILMS PREPARED BY CHEMICAL BATH DEPOSITION USING Z-SCAN TECHNIQUE

INVESTIGATING THE NONLINEAR OPTICAL PROPERTIES OF CuS THIN FILMS PREPARED BY CHEMICAL BATH DEPOSITION USING Z-SCAN TECHNIQUE

Spectral Behaviour of the low concentrations of Coumarin 334 with Broadband Cavity Enhanced Absorption Spectroscopy

Study of the Effect of PANI Polymer on the Optical Properties of Malachite Green Dye

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