International Journal of Antennas and Propagation / 2015 / Article / Fig 29

Review Article

Taming the Electromagnetic Boundaries via Metasurfaces: From Theory and Fabrication to Functional Devices

Figure 29

(a) Schematic of the small-divergence laser, which comprises a QCL and a metallic slit-grating structure defined on its facet. (b, c) Cross sections of the two device designs. (d) 2D simulation of the intensity distribution of a small-divergence QCL of the second design lasing at μm. (e) Calculated far-field intensity distribution of the device shown in (d); inset: enlarged view of the central lobe. (f) Measured 2D far-field intensity of device B patterned with the slit-grating structure. Figures are reproduced from [165].
(a)
(b)
(c)
(d)
(e)
(f)

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.