Charles Foell
University of British Columbia
10 Papers
70 Citations
Charles Foell is an academic researcher from University of British Columbia. The author has contributed to research in topics: Photonic crystal & Silicon. The author has an hindex of 4, co-authored 10 publications. Previous affiliations of Charles Foell include University of Vermont.
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Papers
Transforming carbon nanotube forest from darkest absorber to reflective mirror
Tanveer Saleh,Mehran Vahdani Moghaddam,Mohamed Sultan Mohamed Ali,Masoud Dahmardeh,Charles Foell,Alireza Nojeh,Kenichi Takahata +6 more
TL;DR: In this article, the authors have attempted controlled mechanical processing of carbon nanotube (CNT) forests and observed mirror-like reflection from the processed area with 10% to 15% reflectivity, a level higher than typical reflectivity of pure forests by over two orders of magnitude.
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Photoluminescence dynamics in solid formulations of colloidal PbSe quantum dots: Three-dimensional versus two-dimensional films
Rafael Quintero-Torres,Charles Foell,Jothirmayanantham Pichaandi,Frank C. J. M. van Veggel,Jeff F. Young +4 more
TL;DR: In this article, the decay dynamics of colloidal PbSe quantum dots were compared with dilute dispersions in hexanes, thick, dense, emulsive films, and sub-monolayer films on silicon surfaces.
14
Vector polarons in a degenerate electron system
TL;DR: In this paper, a one-dimensional model of an electron in a doubly (or nearly) degenerate band that interacts with elastic distortions is considered and the electron equations of motion are reduced to a set of coupled nonlinear Schrodinger equations.
5
Patent
Coin recognition system and method
Tim E. Rathjen,William H. Lindhardt,Charles Foell,Benjamin Lindhardt +3 more
- 27 Jun 2014
TL;DR: A coin handling system performs a one or two-part coin handling and recognition process as mentioned in this paper, in which the first part is to image the coins and the second part is the recognition of attributes of the coins.
4
Engineering silicon-based photonic crystal cavities for NV-center quantum information processing
TL;DR: In this article, the partial density of states spectrally near the NV-center electric dipole transition can be tuned to reduce decoherence of an excited NV center despite this transition being above the silicon electronic band gap.
4