Academic Journal
Microspectroscopy of ultrafast laser inscribed channel waveguides in Yb:tungstate crystals
| العنوان: | Microspectroscopy of ultrafast laser inscribed channel waveguides in Yb:tungstate crystals |
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| المؤلفون: | Jaque, Daniel, Bain, F.M., Silva, W.F., Lagatsky, A.A., Thomson, R.R., Psaila, N.D., Kar, A.K., Sibbett, W., Brown, C.T.A. |
| المساهمون: | UAM. Departamento de Física de Materiales |
| بيانات النشر: | American Institute of Physics |
| سنة النشر: | 2014 |
| المجموعة: | Universidad Autónoma de Madrid (UAM): Biblos-e Archivo |
| مصطلحات موضوعية: | Crystal structure, Refractive index, Luminescence, Channel waveguides, Photonic crystal waveguides, Física |
| الوصف: | The following article appeared in Applied Physics Letters 98.14 (2011): 141108 and may be found at http://scitation.aip.org/content/aip/journal/apl/98/14/10.1063/1.3573999 ; We report microspectroscopy measurements of crystalline channel waveguides fabricated in Yb:KGd (WO4)2 and Yb:KY (WO 4)2 using the ultrafast laser inscription technique. From these measurements we find that densification of the WO2 W bridge in the double tungstate crystal lattice is responsible for the refractive index increase, which creates the waveguide confinement. We identified that shifts toward lower energies in the ∼760 cm-1 Raman mode indicate regions, which guide light polarized along the crystallographic b axis, while higher energy shifts in the 682 and 898 cm-1 Raman lines correspond to guiding regions for light polarized along the crystallographic a axis. ; This work was supported by the UK Engineering and Physical Research Council through the Basic Technology Grant No. EP/D04622X/1, the Universidad Autónoma de Madrid and Comunidad Autónoma de Madrid, the Spanish Ministerio de Educación y Ciencia (Grant Nos. MAT2010-16161, CCG08-UAM/MAT-4434, and PHAMA Program No.P2009/MAT1756), CEAL-Banco Santander, and Brazilian agencies CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico). |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | Applied Physics Letters; http://dx.doi.org/10.1063/1.3573999; Comunidad de Madrid. S2009/MAT-1756/PHAMA; Applied Physics Letters 98.14 (2011): 141108; 0003-6951 (print); 1077-3118 (online); http://hdl.handle.net/10486/662034; 141108; 14; 141108-3; 98 |
| DOI: | 10.1063/1.3573999 |
| الاتاحة: | http://hdl.handle.net/10486/662034 https://doi.org/10.1063/1.3573999 |
| Rights: | © 2011 American Institute of Physics. ; openAccess |
| رقم الانضمام: | edsbas.DE29961D |
| قاعدة البيانات: | BASE |
| DOI: | 10.1063/1.3573999 |
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