Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass
Laser heating of chalcogenide glasses has successfully produced rotating lattice single crystals through a solid-solid transformation. To better understand the nature of complex, orientation-dependent lattice rotation, we designed heat profiles of the continuous wave laser by beam shaping, fabricate...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/1/36 |
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| author | Courtney Au-Yeung Dmytro Savytskii Keith Veenhuizen Volkmar Dierolf Himanshu Jain |
| author_facet | Courtney Au-Yeung Dmytro Savytskii Keith Veenhuizen Volkmar Dierolf Himanshu Jain |
| author_sort | Courtney Au-Yeung |
| collection | DOAJ |
| description | Laser heating of chalcogenide glasses has successfully produced rotating lattice single crystals through a solid-solid transformation. To better understand the nature of complex, orientation-dependent lattice rotation, we designed heat profiles of the continuous wave laser by beam shaping, fabricated larger Sb<sub>2</sub>S<sub>3</sub> crystal dots in Sb<sub>2</sub>S<sub>3</sub> glass, and investigated the lattice rotation where the crystal could grow in all radial directions under a circular thermal gradient. The results show that the rate of lattice rotation is highly anisotropic and depends on crystallographic direction. The nature of this rotation is the same in crystals of different orientation relative to the surface. The growth directions that align with the slip planes show the highest rate of rotation and the rotation rate gradually decreases away from this direction. Additionally, the presence of multiple growth directions results in a complicated rotation system. We suggest that the growth front influences the density of dislocations introduced during growth under confinement and thus affects the lattice rotation rate in these crystals. |
| first_indexed | 2024-03-10T13:37:05Z |
| format | Article |
| id | doaj.art-c13ed53ab75846a9b25399d665ded616 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T13:37:05Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-c13ed53ab75846a9b25399d665ded6162023-11-21T07:26:38ZengMDPI AGCrystals2073-43522020-12-011113610.3390/cryst11010036Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model GlassCourtney Au-Yeung0Dmytro Savytskii1Keith Veenhuizen2Volkmar Dierolf3Himanshu Jain4Physics Department, Lehigh University, Bethlehem, PA 18015, USAMaterials Science and Engineering Department, Lehigh University, Bethlehem, PA 18015, USAPhysics Department, Lebanon Valley College, Annville, PA 17003, USAPhysics Department, Lehigh University, Bethlehem, PA 18015, USAMaterials Science and Engineering Department, Lehigh University, Bethlehem, PA 18015, USALaser heating of chalcogenide glasses has successfully produced rotating lattice single crystals through a solid-solid transformation. To better understand the nature of complex, orientation-dependent lattice rotation, we designed heat profiles of the continuous wave laser by beam shaping, fabricated larger Sb<sub>2</sub>S<sub>3</sub> crystal dots in Sb<sub>2</sub>S<sub>3</sub> glass, and investigated the lattice rotation where the crystal could grow in all radial directions under a circular thermal gradient. The results show that the rate of lattice rotation is highly anisotropic and depends on crystallographic direction. The nature of this rotation is the same in crystals of different orientation relative to the surface. The growth directions that align with the slip planes show the highest rate of rotation and the rotation rate gradually decreases away from this direction. Additionally, the presence of multiple growth directions results in a complicated rotation system. We suggest that the growth front influences the density of dislocations introduced during growth under confinement and thus affects the lattice rotation rate in these crystals.https://www.mdpi.com/2073-4352/11/1/36direct laser writingsingle crystal growthdevitrificationlattice orientationbeam shapingchalcogenide glass |
| spellingShingle | Courtney Au-Yeung Dmytro Savytskii Keith Veenhuizen Volkmar Dierolf Himanshu Jain Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass Crystals direct laser writing single crystal growth devitrification lattice orientation beam shaping chalcogenide glass |
| title | Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass |
| title_full | Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass |
| title_fullStr | Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass |
| title_full_unstemmed | Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass |
| title_short | Effect of Laser Beam Profile on Rotating Lattice Single Crystal Growth in Sb<sub>2</sub>S<sub>3</sub> Model Glass |
| title_sort | effect of laser beam profile on rotating lattice single crystal growth in sb sub 2 sub s sub 3 sub model glass |
| topic | direct laser writing single crystal growth devitrification lattice orientation beam shaping chalcogenide glass |
| url | https://www.mdpi.com/2073-4352/11/1/36 |
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