TY - JOUR
T1 - Coherent perfect absorption and reflection in slow-light waveguides
AU - Gutman, Nadav
AU - Sukhorukov, Andrey A.
AU - Chong, Y. D.
AU - Martijn De Sterke, C.
PY - 2013/12/1
Y1 - 2013/12/1
N2 - We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and perfect reflection by varying the wave amplitudes in a uniform input waveguide. The perfectly absorbed wave has anomalously short absorption length, scaling as the inverse one-third power of the absorptivity.
AB - We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and perfect reflection by varying the wave amplitudes in a uniform input waveguide. The perfectly absorbed wave has anomalously short absorption length, scaling as the inverse one-third power of the absorptivity.
UR - http://www.scopus.com/inward/record.url?scp=84889006845&partnerID=8YFLogxK
U2 - 10.1364/OL.38.004970
DO - 10.1364/OL.38.004970
M3 - Article
SN - 0146-9592
VL - 38
SP - 4970
EP - 4973
JO - Optics Letters
JF - Optics Letters
IS - 23
ER -