We show that research presented in Opt. Lett. 34, 301 (2009) applied questionable phosphor definitions and a questionable simulation procedure for light-emitting diodes. Our simulation indicates that a one-dimensional photonic crystal is beneficial for color control but cannot improve the light extraction as asserted in that Letter.
© 2010 Optical Society of America
Original Manuscript: April 13, 2009
Revised Manuscript: May 22, 2009
Manuscript Accepted: May 25, 2009
Published: May 18, 2010
Zong-Yuan Liu, Sheng Liu, Kai Wang, and Xiao-Bing Luo, "Comment on “Enhancement of flip-chip white light-emitting diodes with a one-dimensional photonic crystal”," Opt. Lett. 35, 1758-1758 (2010)
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