Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications
Chalcogenide glasses are increasingly being developed for photonic applications, particularly in the field of mid-infrared optical imaging. In this paper, we study the photosensitivity of one chalcogenide to direct femtosecond laser writing and its possible applications to micro-optics. Particular a...
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MDPI AG
2022-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/17/8813 |
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| author | Pierre Delullier Laurent Calvez Guillaume Druart Florence De La Barrière Christophe Humbert Bertrand Poumellec Matthieu Lancry |
| author_facet | Pierre Delullier Laurent Calvez Guillaume Druart Florence De La Barrière Christophe Humbert Bertrand Poumellec Matthieu Lancry |
| author_sort | Pierre Delullier |
| collection | DOAJ |
| description | Chalcogenide glasses are increasingly being developed for photonic applications, particularly in the field of mid-infrared optical imaging. In this paper, we study the photosensitivity of one chalcogenide to direct femtosecond laser writing and its possible applications to micro-optics. Particular attention has been paid to the creation of phase changes and related refractive index variations. This chalcogenide glass was compared with two commercial heavy oxide glasses: Schott SF10 and Corning 9754. We observed different types of permanent modifications depending on the writing speed and the laser pulse energy. Index variations were measured at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">Δ</mi><mi>n</mi><mo>></mo><mo>+</mo><mn>0.055</mn></mrow></semantics></math></inline-formula> in the chalcogenide glass while maintaining spectral transmission similar to the pristine materials before irradiation. This provides a good candidate to design optical components for infrared application and helps to unlock the potential of the femtosecond laser direct writing technique to implement at high writing speed and high index changes with low optical losses. |
| first_indexed | 2024-03-10T03:00:24Z |
| format | Article |
| id | doaj.art-0272523e3ab24c498c1065cad8d2aa1d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:00:24Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0272523e3ab24c498c1065cad8d2aa1d2023-11-23T12:47:21ZengMDPI AGApplied Sciences2076-34172022-09-011217881310.3390/app12178813Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR ApplicationsPierre Delullier0Laurent Calvez1Guillaume Druart2Florence De La Barrière3Christophe Humbert4Bertrand Poumellec5Matthieu Lancry6ONERA, The French Aerospace Lab, 91120 Palaiseau, FranceInstitut des Sciences Chimiques de Rennes, Université Rennes, UMR6226, 35000 Rennes, FranceONERA, The French Aerospace Lab, 91120 Palaiseau, FranceONERA, The French Aerospace Lab, 91120 Palaiseau, FranceInstitut de Chimie Physique, Université Paris-Saclay, CNRS, UMR8000, 91405 Orsay, FranceICMMO, Institut de Chimie Moléculaire et des Matériaux d’Orsay, Université Paris-Saclay, 91405 Orsay, FranceICMMO, Institut de Chimie Moléculaire et des Matériaux d’Orsay, Université Paris-Saclay, 91405 Orsay, FranceChalcogenide glasses are increasingly being developed for photonic applications, particularly in the field of mid-infrared optical imaging. In this paper, we study the photosensitivity of one chalcogenide to direct femtosecond laser writing and its possible applications to micro-optics. Particular attention has been paid to the creation of phase changes and related refractive index variations. This chalcogenide glass was compared with two commercial heavy oxide glasses: Schott SF10 and Corning 9754. We observed different types of permanent modifications depending on the writing speed and the laser pulse energy. Index variations were measured at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">Δ</mi><mi>n</mi><mo>></mo><mo>+</mo><mn>0.055</mn></mrow></semantics></math></inline-formula> in the chalcogenide glass while maintaining spectral transmission similar to the pristine materials before irradiation. This provides a good candidate to design optical components for infrared application and helps to unlock the potential of the femtosecond laser direct writing technique to implement at high writing speed and high index changes with low optical losses.https://www.mdpi.com/2076-3417/12/17/8813optical glasseschalcogenideoptical componentsfemtosecond laser writingIR optics |
| spellingShingle | Pierre Delullier Laurent Calvez Guillaume Druart Florence De La Barrière Christophe Humbert Bertrand Poumellec Matthieu Lancry Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications Applied Sciences optical glasses chalcogenide optical components femtosecond laser writing IR optics |
| title | Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications |
| title_full | Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications |
| title_fullStr | Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications |
| title_full_unstemmed | Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications |
| title_short | Photosensitivity of Infrared Glasses under Femtosecond Laser Direct Writing for mid-IR Applications |
| title_sort | photosensitivity of infrared glasses under femtosecond laser direct writing for mid ir applications |
| topic | optical glasses chalcogenide optical components femtosecond laser writing IR optics |
| url | https://www.mdpi.com/2076-3417/12/17/8813 |
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