TY - GEN
T1 - Direct measurement of spectrally selective absorption enhancement in Fano resonance photonic crystal cavities on plastic substrates
AU - Chen, Li
AU - Yang, Hongjun
AU - Qiang, Zexuan
AU - Sun, Lei
AU - Ma, Zhenqiang
AU - Xu, Jian
AU - Pate, Ryan
AU - Stiff-Roberts, Adrienne
AU - Brown, Gail J.
AU - Zhou, Weidong
PY - 2010
Y1 - 2010
N2 - We report direct measurement of spectrally selective absorption properties of PbSe and PbS colloidal quantum dots (CQDs) in Si nanomembrane photonic crystal cavities on flexible polyethylene terephthalate (PET) substrates. Enhanced optical absorption was obtained when CQD absorption overlaps with photonic crystal Fano resonances. On the other hand, no absorption was observed when the Fano resonance has no spectral overlap with the CQD absorption bands. The measurement results agree well with the simulation results obtained based on 3D FDTD and RCWA simulation techniques. Measured angular and polarization properties also agree well with Fano resonance transmission properties, which were obtained experimentally and, theoretically based on simulated dispersion properties and transmission properties. Bending induced spectral shifts were characterized for potentially flexible photonic device applications.
AB - We report direct measurement of spectrally selective absorption properties of PbSe and PbS colloidal quantum dots (CQDs) in Si nanomembrane photonic crystal cavities on flexible polyethylene terephthalate (PET) substrates. Enhanced optical absorption was obtained when CQD absorption overlaps with photonic crystal Fano resonances. On the other hand, no absorption was observed when the Fano resonance has no spectral overlap with the CQD absorption bands. The measurement results agree well with the simulation results obtained based on 3D FDTD and RCWA simulation techniques. Measured angular and polarization properties also agree well with Fano resonance transmission properties, which were obtained experimentally and, theoretically based on simulated dispersion properties and transmission properties. Bending induced spectral shifts were characterized for potentially flexible photonic device applications.
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U2 - 10.1117/12.841440
DO - 10.1117/12.841440
M3 - Conference contribution
AN - SCOPUS:77951727572
SN - 9780819480057
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Photonic and Phononic Crystal Materials and Devices X
T2 - Photonic and Phononic Crystal Materials and Devices X
Y2 - 26 January 2010 through 28 January 2010
ER -