Journal
JOURNAL OF APPLIED PHYSICS
Volume 115, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4861636
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Funding
- CNPq
- CAPES
- FINEP
- Fundacao Araucaria
- ICTP (Italy)
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We successfully realized broad-band light-emitting color center waveguides buried in LiF crystals by using femtosecond laser pulses. The characterization of the waveguides was performed by optical microscopy, photoluminescence spectra, loss measurements and near-field profiling. The experimental results show that the direct-writing fabrication process induces low-index contrast active channel waveguides: their wavelength-dependent refractive index changes, estimated from 10(-3) to 10(-4) depending on the writing conditions, allow supporting few modes at visible and near-infrared wavelengths. (C) 2014 AIP Publishing LLC.
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