Lighting apparatus having quantum dot layer

Details Lighting apparatus having quantum dot layer Lighting apparatus having quantum dot layer

H - Electricity

01

L

H01L 31/055 (2006.01) G02B 6/122 (2006.01) H01L 31/0352 (2006.01) H01S 5/34 (2006.01) H01L 33/00 (2006.01)

Patent

CA 2401459

A fluorescent structure (10) comprising a plurality of quantum dots (12) that radiate emission in response to optical pumping. These quantum dots (12) are disposed in relation to a waveguide so as to be able to propagate this emission through the waveguide. Preferably, the fluorescent structure comprises a layer of quantum dots (12) sandwiched between two layers (14, 16), at least one layer being optically transmissive to the pump radiation and at least one of the layers being optically transmissive to emission from the quantum dots.

L'invention concerne une structure fluorescente comprenant plusieurs points quantiques qui émettent un rayonnement en réponse à un pompage optique. Ces points quantiques sont agencés en relation avec un guide d'ondes, de façon à propager une émission à travers ledit guide d'ondes. La structure fluorescente comprend, de préférence, une couche de points quantiques prise en sandwich entre deux autres couches, une couche au moins optiquement transparente laissant passer le rayonnement de la pompe, et l'une des autres couches optiquement transparentes laissant passer l'émission provenant des points quantiques.

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