Co-Located Dual Band (MWIR/LWIR) QWIP Structure

 

Contact Scheme for Dual Band Pixel

 

Text Box: MWIR( 3-5 μm) QWIP DetectorText Box: LWIR (8-12 μm) QWIP DetectorText Box: Substrate

 

 

 

 

 

 

 

 

MWIR Band: InGaAs/GaAs/AlGaAs: Double Well Structure

        Well 1: In(x)Ga(1-x)As

        Well 2: GaAs

        Barrier: Al(y)Ga(1-y)As

        Periods: N

LWIR Band: InGaAs/GaAs/AlGaAs: Double Well Structure

        Well 1: In(x)Ga(1-x)As

        Well 2: GaAs

        Barrier: Al(y)Ga(1-y)As

        Periods: N