Multi-wavelength infrared detection realized with two distinct superlattices separated by a blocking barrier was discussed. The blocking barrier separating the two superlattices allowed the photoelectrons from one of the superlattices to be collected under either voltage polarities. The photo-response was switchable between 7.5 ∼ 12μm and 6 ∼ 8.5μm by the bias polarity, and the spectral responsivity in each wavelength region was also tunable by the bias magnitude.
|Number of pages||1|
|State||Published - 1 Jan 2002|
|Event||Conference on Lasers and Electro-Optics (CLEO 2002) - Long Beach, CA, United States|
Duration: 19 May 2002 → 24 May 2002
|Conference||Conference on Lasers and Electro-Optics (CLEO 2002)|
|City||Long Beach, CA|
|Period||19/05/02 → 24/05/02|