The simulation results show outstanding dual-bands absorption (99.96% and 99.37%) in the visible frequency regime of electromagnetic wave.
Since the discovery of metamaterial absorber to the present days, several designs were proposed which display single-, duand, and multiple-bands absorption responses in almost all regions of solar spectrum.
PPor BT exhibited a broad absorption band from 350 to 950 nm with two peaks centered at 456 and 818 nm corresponding to the Soret band and Q-bands absorption of porphyrin segments, respectively.
The nebula is substantially reddened by interstellar absorption (the V-band absorption is about 1.5 magnitudes).
Results for irregular waves confirm the broad banded absorption capabilities.
Similar techniques are being applied to study polarization dephasing in noble metal films (utilizing the strong optical d-band absorption as well as free-carrier absorption).
The surface plasma resonance band absorption of nanoparticles could be adjusted by regulating the flow rates.
SGT-012 and SGT-052 porphyrins, containing a strong donor unit, exhibited similar S-band absorption and a slightly red-shifted Q-band absorption compared to SGT-016 and SGT-053 porphyrins containing a weak bulky donor unit, respectively.
And the effect of related geometric parameter on dual-band absorption intensities is also investigated to obtain the optimized one.
Moreover, the effects of the parameters are investigated to verify the origin of the five-band absorption.
The optimal narrow-band absorption can be achieved by the rational design of the structural parameters of rectangular cavity.
