Measurement of bound states in the continuum by a detector embedded in a photonic crystal

Light, Science & Applications
Roman GanschGottfried Strasser

Abstract

We directly measure optical bound states in the continuum (BICs) by embedding a photodetector into a photonic crystal slab. The BICs observed in our experiment are the result of accidental phase matching between incident, reflected and in-plane waves at seemingly random wave vectors in the photonic band structure. Our measurements were confirmed through a rigorously coupled-wave analysis simulation in conjunction with temporal coupled mode theory. Polarization mixing between photonic crystal slab modes was observed and described using a plane wave expansion simulation. The ability to probe the field intensity inside the photonic crystal and thereby to directly measure BICs represents a milestone in the development of integrated opto-electronic devices based on BICs.

References

Sep 15, 1994·Physical Review. B, Condensed Matter·R Q YangM Sweeny
May 18, 1987·Physical Review Letters·E Yablonovitch
Oct 28, 1996·Physical Review Letters·A MekisJ D Joannopoulos
Mar 13, 2003·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Shanhui FanJ D Joannopoulos
Jun 4, 2008·Physical Review Letters·D C MarinicaS V Shabanov
Apr 19, 2004·Optics Express·Virginie LousseShanhui Fan
Sep 22, 2011·Optics Express·Roman GanschGottfried Strasser
Nov 24, 2011·Physical Review Letters·Yonatan PlotnikMordechai Segev
Jul 13, 2013·Nature·Chia Wei HsuMarin Soljačić
Aug 2, 2014·Physical Review Letters·Yi YangSusumu Noda

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Citations

Feb 6, 2018·Optics Letters·Yaroslav V KartashovLluis Torner
May 19, 2018·Physical Review Letters·Yiwen ZhangJian Zi
May 2, 2020·Physical Review Letters·Weimin YeJianlong Liu
Nov 2, 2019·Optics Letters·Samyobrata MukherjeeLluis Torner
Jan 6, 2021·Nano Letters·Haoning TangEric Mazur

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Methods Mentioned

BETA
infrared spectroscopy

Software Mentioned

S4
RPWEM

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