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Nonlinear optical effects in natural topaz.

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Title: Nonlinear optical effects in natural topaz.
Authors: Filosa, Raffaele1,2 (AUTHOR), Elettivo, Giuseppe S.1,3 (AUTHOR), Ferraro, Mario1,2 (AUTHOR) mario.ferraro92@unical.it, Procopio, Salvatore4 (AUTHOR), Nicolino, Antonella1,2 (AUTHOR), Crocco, Maria C.1,2 (AUTHOR), Beltrano, Joseph J.1,2 (AUTHOR), Barberi, Riccardo C.1,2 (AUTHOR), Formoso, Vincenzo1,2 (AUTHOR), Guzzi, Rita2,5 (AUTHOR), De Luca, Antonio2,5 (AUTHOR), Agrosì, Giovanna3 (AUTHOR), Tempesta, Gioacchino3 (AUTHOR), Agostino, Raffaele G.1,2,5 (AUTHOR)
Source: Journal of Luminescence. Nov2023, Vol. 263, pN.PAG-N.PAG. 1p.
Subjects: Multiphoton absorption, Luminescence measurement, Nonlinear optical materials, Electron beams, Multiphoton ionization, Optical properties, Neutron irradiation, Nonlinear optical spectroscopy
Abstract: We investigate the nonlinear optical properties of natural topaz. For the first time, the observation of nonlinear phenomena related to multiphoton absorption effects, such as the up-conversion luminescence of the material defects, is reported in natural gems. In particular, we were able to detect the presence of the AlO 4 -related defects which are responsible for the change of the color of topaz as a consequence of irradiation with γ -rays as well as electrons and neutrons beams. Besides, the nonlinear spectral broadening of intense laser beams permits to spot of the presence of rare earth elements, such as Ytterbium and Neodymium, which are not found by means of standard characterization techniques of natural gems, e.g., those based on X-ray fluorescence, electron paramagnetic resonance, and linear optical fluorescence and absorbance measurements. In this sense, our results demonstrate that nonlinear optical effects induced luminescence measurements are a complementary, and previously unforeseen, technique for the characterization of the optical and physicochemical properties of natural gems. Finally, using intense infrared laser pulses allowed us to trigger extreme nonlinear effects, such as multiphoton ionization and conical emission. Our results will be of interest for the investigation of novel nonlinear optical effects in materials that are transparent in the whole visible spectral range and may give insights into the development of materials for nonlinear photonics. • Multiphoton absorption effects are reported for the first time in natural topaz. • New methodology for characterizing natural gems by exploiting nonlinear optical effects. • Sub-ppm traces of rare-earth elements are revealed by up-conversion luminescence spectra. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Luminescence is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 171953427
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Nonlinear optical effects in natural topaz.
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  Data: <searchLink fieldCode="AR" term="%22Filosa%2C+Raffaele%22">Filosa, Raffaele</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Elettivo%2C+Giuseppe+S%2E%22">Elettivo, Giuseppe S.</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ferraro%2C+Mario%22">Ferraro, Mario</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> mario.ferraro92@unical.it</i><br /><searchLink fieldCode="AR" term="%22Procopio%2C+Salvatore%22">Procopio, Salvatore</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nicolino%2C+Antonella%22">Nicolino, Antonella</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Crocco%2C+Maria+C%2E%22">Crocco, Maria C.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Beltrano%2C+Joseph+J%2E%22">Beltrano, Joseph J.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Barberi%2C+Riccardo+C%2E%22">Barberi, Riccardo C.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Formoso%2C+Vincenzo%22">Formoso, Vincenzo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guzzi%2C+Rita%22">Guzzi, Rita</searchLink><relatesTo>2,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22De+Luca%2C+Antonio%22">De Luca, Antonio</searchLink><relatesTo>2,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agrosì%2C+Giovanna%22">Agrosì, Giovanna</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tempesta%2C+Gioacchino%22">Tempesta, Gioacchino</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agostino%2C+Raffaele+G%2E%22">Agostino, Raffaele G.</searchLink><relatesTo>1,2,5</relatesTo> (AUTHOR)
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  Data: We investigate the nonlinear optical properties of natural topaz. For the first time, the observation of nonlinear phenomena related to multiphoton absorption effects, such as the up-conversion luminescence of the material defects, is reported in natural gems. In particular, we were able to detect the presence of the AlO 4 -related defects which are responsible for the change of the color of topaz as a consequence of irradiation with γ -rays as well as electrons and neutrons beams. Besides, the nonlinear spectral broadening of intense laser beams permits to spot of the presence of rare earth elements, such as Ytterbium and Neodymium, which are not found by means of standard characterization techniques of natural gems, e.g., those based on X-ray fluorescence, electron paramagnetic resonance, and linear optical fluorescence and absorbance measurements. In this sense, our results demonstrate that nonlinear optical effects induced luminescence measurements are a complementary, and previously unforeseen, technique for the characterization of the optical and physicochemical properties of natural gems. Finally, using intense infrared laser pulses allowed us to trigger extreme nonlinear effects, such as multiphoton ionization and conical emission. Our results will be of interest for the investigation of novel nonlinear optical effects in materials that are transparent in the whole visible spectral range and may give insights into the development of materials for nonlinear photonics. • Multiphoton absorption effects are reported for the first time in natural topaz. • New methodology for characterizing natural gems by exploiting nonlinear optical effects. • Sub-ppm traces of rare-earth elements are revealed by up-conversion luminescence spectra. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Luminescence is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.jlumin.2023.120076
    Languages:
      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Multiphoton absorption
        Type: general
      – SubjectFull: Luminescence measurement
        Type: general
      – SubjectFull: Nonlinear optical materials
        Type: general
      – SubjectFull: Electron beams
        Type: general
      – SubjectFull: Multiphoton ionization
        Type: general
      – SubjectFull: Optical properties
        Type: general
      – SubjectFull: Neutron irradiation
        Type: general
      – SubjectFull: Nonlinear optical spectroscopy
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      – TitleFull: Nonlinear optical effects in natural topaz.
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              M: 11
              Text: Nov2023
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