Tunable bragg stack

Details Tunable bragg stack Tunable bragg stack

G - Physics

02

F

G02F 1/19 (2006.01) G01R 19/145 (2006.01) G09F 13/00 (2006.01) G09G 3/20 (2006.01) H01L 33/00 (2010.01) H01S 5/125 (2006.01) H01S 5/187 (2006.01)

Patent

CA 2726342

A tunable photonic crystal device comprising: alternating layers of a first material and a second material, the alternating layers comprising a responsive material, the responsive material being responsive to an external stimulus, the alternating layers having a periodic difference in refractive indices giving rise to a first reflected wavelength; wherein, in response to the external stimulus, a change in the responsive material results in a reflected wavelength of the device shifting from the first reflected wavelength to a second reflected wavelength.

Linvention concerne un dispositif à cristaux photoniques accordable comprenant : des couches alternatives dun premier matériau et dun second matériau, les couches alternatives comprenant un matériau sensible, le matériau sensible étant sensible à un stimulus externe, les couches alternatives ayant une différence périodique des indices de réfraction donnant lieu à une première longueur donde réfléchie ; un changement du matériau sensible, en réponse au stimulus externe, faisant passer une longueur donde réfléchie du dispositif de la première longueur donde réfléchie à une seconde longueur donde réfléchie.

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