Karima Chamma
University of Central Florida
7 Papers
8 Citations
Karima Chamma is an academic researcher from University of Central Florida. The author has contributed to research in topics: Refractive index & Chalcogenide glass. The author has an hindex of 5, co-authored 7 publications.
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Papers
Evidence of spatially selective refractive index modification in 15GeSe 2 -45As 2 Se 3 -40PbSe glass ceramic through correlation of structure and optical property measurements for GRIN applications
Laura Sisken,Charmayne Smith,Andrew Buff,Myungkoo Kang,Karima Chamma,Peter Wachtel,J. David Musgraves,Clara Rivero-Baleine,Andrew Kirk,Matthew Kalinowski,Megan Melvin,Theresa S. Mayer,Kathleen Richardson +12 more
TL;DR: In this article, the formation of nanocrystal phases created through thermal heat treatment in a multi-component chalcogenide glass was investigated, and the changes in the nanocomposite's micro-Raman signature were quantified and correlated to crystal phases formed, the material's index change and the resulting GRIN profile.
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Generation and bleaching of intrinsic color centers in photo-thermo-refractive glass matrix
TL;DR: In this paper, the role of intrinsic electron and hole centers in photo-thermo-refractive (PTR) glass was studied and the resulting absorption spectra of color centers were studied after excitation of the intrinsic absorption edge of glass matrix.
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X-ray diffraction study of NaF nano-crystals in photo-thermo-refractive glass
TL;DR: In this paper, the authors combined optical spectroscopy, interferometry, DSC and XRD to study the growth of NaF crystals in PTR glass, and they found that the size of a single NaF crystal does not exceed 20nm.
Photo-Thermo-Refractive glass - Properties and Applications
Larissa Glebova,Karima Chamma,Julien Lumeau,Leonid B. Glebov +3 more
- 16 Feb 2011
TL;DR: In this paper, photo-thermo-induced refractive index change, advances in glass properties and applications for holographic optical elements, laser beam profilers, volume phase masks, and monolithic solid state lasers are discussed.
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Optimization of manufacturability of chalcogenide materials for mid-infrared optical components
Kathleen Richardson,Charmayne Smith,Erick Koontz,Karima Chamma,Benn Gleason,J. David Musgraves,Peter Wachtel +6 more
- 22 Jun 2014
TL;DR: In this article, trade-offs in the optimization of spectral-specific optical functions for manufacturability are discussed, and the trade-off between spectral properties and manufacturing performance is discussed.
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