Seminarium Fizyki Ciała Stałego
sala 0.06, ul. Pasteura 5
2022-10-21 (10:15) 
dr Łukasz Kubiszyn (VIGO Photonics S.A.)
“MBE growth and characterization of antimonide superlattice-based heterostructures for IR detection at VIGO Photonics"
During the last 7 years, VIGO has been developing the technology of antimonide superlattices (SLs) grown on GaAs substrates, in particular InAs/InAsSb (the so-called Ga-free) SLs. The optimization of growth and processing resulted in MWIR and LWIR heterostructural devices whose detectivity is approaching the level of mercury-cadmium telluride (MCT) detectors offered in the VIGO catalogue. We are constantly developing new devices aiming at the replacement of MCT for some applications. During the seminar, the overall progress of the technology and device architecture will be presented. Greater focus will be put on recent results concerning interband cascade LWIR detectors whose aim is to reach high detectivity in conditions where the conventional IR photodiodes suffer from a very low quantum efficiency and extremely low resistances. The challenges of the technology and plans for future improvements will be also discussed.UwagaSeminarium w trybie HybrydowymFaculty of Physics room 0.06link to remote mode:https://zoom.us/j/7218838148szczegóły patrz instrukcja :instrukcja: (pdf file)AttentionThe seminar in the Hybrid modeFaculty of Physics room 0.06for details see instruction :instruction: (pdf file)