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. 2017 Nov 7;8(11):328. doi: 10.3390/mi8110328

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(a) iPod LED emission spectra; (b) absorption (black) and emission (orange) spectra of orange phosphorex microspheres (from [24]); transmission spectra of filters: (c) short pass Thorlabs FESH0550 and (d) long pass Thorlabs FGL 550 (from [25]).