TY - JOUR
T1 - Coherent emission of light using stacked gratings
AU - Gong, Yongkang
AU - Liu, Xianliang
AU - Li, Kang
AU - Huang, Jungang
AU - Martinez, J. J.
AU - Rees-Whippey, Daniel
AU - Carver, Sara
AU - Wang, Leiran
AU - Zhang, Wenfu
AU - Duan, Tao
AU - Copner, Nigel
PY - 2013/5/14
Y1 - 2013/5/14
N2 - The possibility of temporally and spatially coherent thermal emission has been demonstrated utilizing stacked gratings. We demonstrate that the metallic grating with narrow air slit behaves like a homogeneous slab with large permittivity and small permeability and find that the interaction between the metallic grating and the Bragg grating gives rise to impendence matching at wavelengths located in the photonic band gap of the Bragg grating, which enables the stacked gratings to perform high emission with ultranarrow spectrum and antenna-like spatial response. This paves the way towards the design of a novel infrared source platform for applications such as thermal analysis, imaging, security, biosensing, and medical diagnoses.
AB - The possibility of temporally and spatially coherent thermal emission has been demonstrated utilizing stacked gratings. We demonstrate that the metallic grating with narrow air slit behaves like a homogeneous slab with large permittivity and small permeability and find that the interaction between the metallic grating and the Bragg grating gives rise to impendence matching at wavelengths located in the photonic band gap of the Bragg grating, which enables the stacked gratings to perform high emission with ultranarrow spectrum and antenna-like spatial response. This paves the way towards the design of a novel infrared source platform for applications such as thermal analysis, imaging, security, biosensing, and medical diagnoses.
UR - http://www.scopus.com/inward/record.url?scp=84877917708&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.87.205121
DO - 10.1103/PhysRevB.87.205121
M3 - Article
AN - SCOPUS:84877917708
SN - 1098-0121
VL - 87
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 20
M1 - 205121
ER -