Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles
This paper aims to study the nonlinear absorption characteristics of palladium nanoparticles (PdNPs) at off-resonant wavelengths. For this purpose, multi-wavelength (500–650 nm) nanosecond Z-scan technique was used. The experimental results indicate that saturated absorption (SA) and the transition...
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| Format: | Article |
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MDPI AG
2021-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/4/1640 |
| _version_ | 1797396827808464896 |
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| author | Chunyu Chen Jun Wang Yachen Gao |
| author_facet | Chunyu Chen Jun Wang Yachen Gao |
| author_sort | Chunyu Chen |
| collection | DOAJ |
| description | This paper aims to study the nonlinear absorption characteristics of palladium nanoparticles (PdNPs) at off-resonant wavelengths. For this purpose, multi-wavelength (500–650 nm) nanosecond Z-scan technique was used. The experimental results indicate that saturated absorption (SA) and the transition from SA to reverse saturated absorption (RSA) can occur, and depends on the excitation wavelength and energy. When the excitation wavelength is constant, with the increase of excitation energy, PdNPs change from SA to RSA. When the excitation energy is constant, with the excitation wavelength approaching surface plasmon resonance (SPR), PdNPs change from SA to RSA. This phenomenon of SA and RSA under multi-wavelength excitation in the off-resonant region provides a supplement for the systematic study of the nonlinear absorption of PdNPs. |
| first_indexed | 2024-03-09T00:57:10Z |
| format | Article |
| id | doaj.art-057239bea8764d459cdcf1ab6072d8ac |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T00:57:10Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-057239bea8764d459cdcf1ab6072d8ac2023-12-11T16:48:26ZengMDPI AGApplied Sciences2076-34172021-02-01114164010.3390/app11041640Wavelength-Dependent Nonlinear Absorption in Palladium NanoparticlesChunyu Chen0Jun Wang1Yachen Gao2College of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaCollege of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaCollege of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaThis paper aims to study the nonlinear absorption characteristics of palladium nanoparticles (PdNPs) at off-resonant wavelengths. For this purpose, multi-wavelength (500–650 nm) nanosecond Z-scan technique was used. The experimental results indicate that saturated absorption (SA) and the transition from SA to reverse saturated absorption (RSA) can occur, and depends on the excitation wavelength and energy. When the excitation wavelength is constant, with the increase of excitation energy, PdNPs change from SA to RSA. When the excitation energy is constant, with the excitation wavelength approaching surface plasmon resonance (SPR), PdNPs change from SA to RSA. This phenomenon of SA and RSA under multi-wavelength excitation in the off-resonant region provides a supplement for the systematic study of the nonlinear absorption of PdNPs.https://www.mdpi.com/2076-3417/11/4/1640palladium nanoparticlesnonlinear absorptionwavelength-dependent |
| spellingShingle | Chunyu Chen Jun Wang Yachen Gao Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles Applied Sciences palladium nanoparticles nonlinear absorption wavelength-dependent |
| title | Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles |
| title_full | Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles |
| title_fullStr | Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles |
| title_full_unstemmed | Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles |
| title_short | Wavelength-Dependent Nonlinear Absorption in Palladium Nanoparticles |
| title_sort | wavelength dependent nonlinear absorption in palladium nanoparticles |
| topic | palladium nanoparticles nonlinear absorption wavelength-dependent |
| url | https://www.mdpi.com/2076-3417/11/4/1640 |
| work_keys_str_mv | AT chunyuchen wavelengthdependentnonlinearabsorptioninpalladiumnanoparticles AT junwang wavelengthdependentnonlinearabsorptioninpalladiumnanoparticles AT yachengao wavelengthdependentnonlinearabsorptioninpalladiumnanoparticles |