Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids
Abstract In this paper, the influence of host liquid’s properties on far-field intensity distribution of a continuous Gaussian laser beam passing through the synthesized colloidal gold nanoparticles (AuNPs) is experimentally and numerically studied considering the different form of heat transfer mo...
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Islamic Azad University, Marvdasht Branch
2024-05-01
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| Series: | Journal of Optoelectronical Nanostructures |
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| Online Access: | https://jopn.marvdasht.iau.ir/article_6323_80e5df03d1bd78f0e19cdb69b116f04c.pdf |
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| author | Hoda Aleali Ahmad Mehramiz Elham Valizadeh Pilehroud |
| author_facet | Hoda Aleali Ahmad Mehramiz Elham Valizadeh Pilehroud |
| author_sort | Hoda Aleali |
| collection | DOAJ |
| description | Abstract
In this paper, the influence of host liquid’s properties on far-field intensity distribution of a continuous Gaussian laser beam passing through the synthesized colloidal gold nanoparticles (AuNPs) is experimentally and numerically studied considering the different form of heat transfer modes. Our results reveal that dispersed NPs in liquids with more viscosity or less thermal expansion coefficient, lead to more concentric far-field diffraction patterns. By changing the viscosity and thermal expansion coefficient, the form of diffraction patterns due to the convection effect, can dramatically change compared to the strength of the thermal nonlinear refraction. The effect of the linear absorption coefficient of the medium on diffraction patterns of the colloids is also investigated. It is shown that by increasing the linear absorption coefficient of the medium, the number of the rings and the beam divergence increase under exposure of the 532 nm laser beam. Our observations show the excellent sensitivity of the diffraction ring pattern technique to characterize the different modes of heat transfer and thermo-optical nonlinear properties of the NPs colloids. |
| format | Article |
| id | doaj-art-9817faa0ce694cff97a8673342c2ba8a |
| institution | OA Journals |
| issn | 2423-7361 2538-2489 |
| language | English |
| publishDate | 2024-05-01 |
| publisher | Islamic Azad University, Marvdasht Branch |
| record_format | Article |
| series | Journal of Optoelectronical Nanostructures |
| spelling | doaj-art-9817faa0ce694cff97a8673342c2ba8a2025-08-20T02:37:58ZengIslamic Azad University, Marvdasht BranchJournal of Optoelectronical Nanostructures2423-73612538-24892024-05-0192476310.30495/jopn.2024.31805.12906323Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles ColloidsHoda Aleali0Ahmad Mehramiz1Elham Valizadeh Pilehroud2Department of metrology, Research Center of Quality Assessment and Management Systems, Standard Research Institute (SRI), Karaj, 3174734563, IranDepartment of Physics, Faculty of Basic Sciences, Imam Khomeini International University, Qazvin, IranDepartment of Physics, Faculty of Basic Sciences, Imam Khomeini International University, Qazvin, IranAbstract In this paper, the influence of host liquid’s properties on far-field intensity distribution of a continuous Gaussian laser beam passing through the synthesized colloidal gold nanoparticles (AuNPs) is experimentally and numerically studied considering the different form of heat transfer modes. Our results reveal that dispersed NPs in liquids with more viscosity or less thermal expansion coefficient, lead to more concentric far-field diffraction patterns. By changing the viscosity and thermal expansion coefficient, the form of diffraction patterns due to the convection effect, can dramatically change compared to the strength of the thermal nonlinear refraction. The effect of the linear absorption coefficient of the medium on diffraction patterns of the colloids is also investigated. It is shown that by increasing the linear absorption coefficient of the medium, the number of the rings and the beam divergence increase under exposure of the 532 nm laser beam. Our observations show the excellent sensitivity of the diffraction ring pattern technique to characterize the different modes of heat transfer and thermo-optical nonlinear properties of the NPs colloids.https://jopn.marvdasht.iau.ir/article_6323_80e5df03d1bd78f0e19cdb69b116f04c.pdfthermo-optical nonlinearityhost liquid’s propertiesfar-field intensitycolloidal gold nanoparticlesself-phase modulationphotonic devices |
| spellingShingle | Hoda Aleali Ahmad Mehramiz Elham Valizadeh Pilehroud Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids Journal of Optoelectronical Nanostructures thermo-optical nonlinearity host liquid’s properties far-field intensity colloidal gold nanoparticles self-phase modulation photonic devices |
| title | Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids |
| title_full | Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids |
| title_fullStr | Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids |
| title_full_unstemmed | Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids |
| title_short | Host Liquid Effect on Thermo-Optical Pattern of a Self-Phase Modulated Laser Beam Passing Through Au Nanoparticles Colloids |
| title_sort | host liquid effect on thermo optical pattern of a self phase modulated laser beam passing through au nanoparticles colloids |
| topic | thermo-optical nonlinearity host liquid’s properties far-field intensity colloidal gold nanoparticles self-phase modulation photonic devices |
| url | https://jopn.marvdasht.iau.ir/article_6323_80e5df03d1bd78f0e19cdb69b116f04c.pdf |
| work_keys_str_mv | AT hodaaleali hostliquideffectonthermoopticalpatternofaselfphasemodulatedlaserbeampassingthroughaunanoparticlescolloids AT ahmadmehramiz hostliquideffectonthermoopticalpatternofaselfphasemodulatedlaserbeampassingthroughaunanoparticlescolloids AT elhamvalizadehpilehroud hostliquideffectonthermoopticalpatternofaselfphasemodulatedlaserbeampassingthroughaunanoparticlescolloids |