title: Numerical simulation of crosstalk in reduced pitch HgCdTe photon-trapping structure pixel arrays.
abstract: We have investigated crosstalk in HgCdTe photovoltaic pixel arrays employing a photon trapping (PT) structure realized with a periodic array of pillars intended to provide broadband operation. We have found that, compared to non-PT pixel arrays with similar geometry, the array employing the PT structure has a slightly higher optical crosstalk. However, when the total crosstalk is evaluated, the presence of the PT region drastically reduces the total crosstalk; making the use of the PT structure not only useful to obtain broadband operation, but also desirable for reducing crosstalk in small pitch detector arrays.
authors.affiliation: Electrical and Computer Engineering Department, Boston University, 8 Saint Mary’s Street, Boston, MA 02215, USA.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Schuster
authors.forename: Enrico
authors.initials: E
authors.lastname: Bellotti
mesh_terms: D016477:Artifacts; D019187:Cadmium Compounds / Q000737:chemistry* / Q000528:radiation effects; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D017669:Mercury Compounds / Q000737:chemistry*; D008962:Models, Theoretical; D010783:Photometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D059629:Signal-To-Noise Ratio; D013691:Tellurium / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D019187:Cadmium Compounds; D017669:Mercury Compounds; D013691:Tellurium; C028337:cadmium telluride