Zobrazeno 1 - 10
of 49
pro vyhledávání: '"William E. Tennant"'
Publikováno v:
Journal of Electronic Materials. 39:1001-1006
Strained-layer superlattices (SLS) based on type II InAs/Ga(In)Sb materials are a rapidly maturing technology and are theoretically predicted to exceed the dark-current performance of state-of-the-art HgCdTe. A substantial effort is underway at Teled
Autor:
Jerry R. Meyer, Igor Vurgaftman, Joseph G. Tischler, William E. Tennant, K. A. Olver, Chadwick L. Canedy, S. P. Powell, Edward H. Aifer, Jeffrey H. Warner, Eric M. Jackson
Publikováno v:
Journal of Electronic Materials. 39:1070-1079
Shallow-etch mesa isolation (SEMI) of graded-bandgap “W”-structured type II superlattice (GGW) infrared photodiodes provides a powerful means for reducing excess dark currents due to surface and bulk junction related processes, and it is particul
Autor:
Edward H. Aifer, William E. Tennant, Jerry R. Meyer, Jeffrey H. Warner, K. A. Olver, Igor Vurgaftman, Eric M. Jackson, Joseph G. Tischler, Chadwick L. Canedy, S. P. Powell
Publikováno v:
Infrared Physics & Technology. 52:326-334
Limiting the defect-mediated dark currents in type-II superlattice (T2SL) IR photodiodes remains the key challenge to focal plane arrays (FPAs) based on this material system. In spite of its larger effective mass to suppress tunneling and more than a
Autor:
William W. Bewley, William E. Tennant, D. D. Edwall, M. L. Thomas, James R. Lindle, E. Piquette, Igor Vurgaftman, Jerry R. Meyer
Publikováno v:
Journal of Electronic Materials. 36:988-992
We used an InSb radiometric thermal imager to characterize the performance of 1″ × 1″ negative luminescent (NL) arrays. The devices grown on both CdZnTe (two arrays) and silicon (three arrays) as substrates have cut-off wavelengths ranging from
Autor:
J. L. Johnson, Jerry R. Meyer, James R. Lindle, William W. Bewley, Edward P. Smith, Scott M. Johnson, E. Piquette, M. L. Thomas, Igor Vurgaftman, William E. Tennant
Publikováno v:
Journal of Electronic Materials. 35:1391-1398
Negative luminescence (NL) refers to the suppression of infrared blackbody emission, and hence an apparent temperature reduction, due to free carrier extraction from a reverse-biased p-n junction. A number of applications are envisioned for NL device
Autor:
James R. Lindle, E. Piquette, Chul Soo Kim, M. L. Thomas, Igor Vurgaftman, William W. Bewley, J. L. Johnson, Jerry R. Meyer, William E. Tennant
Publikováno v:
IEEE Journal of Quantum Electronics. 41:227-233
We demonstrate the substantial suppression of infrared (IR) blackbody emission from HgCdTe photodiode arrays with cutoff wavelengths of 4.8, 5.5, and 6.0 /spl mu/m. At room temperature, a reverse bias induces internal negative luminescence (NL) effic
Autor:
M. L. Thomas, J. L. Johnson, E. Piquette, William W. Bewley, Igor Vurgaftman, James R. Lindle, Jerry R. Meyer, William E. Tennant
Publikováno v:
Journal of Electronic Materials. 33:600-603
The negative luminescence (NL) efficiency of a 5 mm×5 mm array (100% effective fill factor) of HgCdTe photodiodes (λco=4.8 µm at 295 K) has been measured as a function of temperature. The internal NL efficiency of ≈95% at λ=4 µm is nearly inde
Autor:
J. L. Johnson, M. L. Thomas, Jerry R. Meyer, Igor Vurgaftman, James R. Lindle, William W. Bewley, William E. Tennant
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 20:558-562
A self-referencing, optical modulation technique was used to measure the negative luminescence efficiencies of an array of mid-wave infrared HgCdTe photodiodes with cutoff wavelength 4.6 μm as a function of sample temperature. The internal efficienc
Autor:
M. L. Thomas, G. Hildebrand, M. Muzilla, John H. Dinan, V. Gil, Lester J. Kozlowski, Andrew J. Stoltz, William E. Tennant, P. Ely, D. D. Edwall, M. Zandian, K. Spariosu, W. V. McLevige
Publikováno v:
Journal of Electronic Materials. 30:590-594
In the last few years Rockwell has developed a novel simultaneous unipolar multispectral integrated HgCdTe detector and focal plane array technology that is a natural and relatively straightforward derivative of our baseline double layer planar heter
Publikováno v:
Journal of Electronic Materials. 28:582-588
Over the last several years cooled applications of HgCdTe at low temperatures have proliferated. Having low fundamental dark current at any given wavelength and temperature makes HgCdTe attractive for high temperature applications as well. We are exp