Yazar "Sökmen, I." için listeleme
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Broadband asymmetric quantum-well infrared photodetector in Long-Wavelength Infrared Range (LWIR)
Hoştut, M.; Ergün, Y.; Sökmen, I. (2007)A theoretical investigation of a GaAs-AlGaAs infrared detector consisting of three asymmetric quantum wells is presented. Each quantum well is sensitive to yield absorption and a photoresponse at peak wavelengths of 8 µm, ... -
Exciton states in a quantum dot with parabolic confinement
In this study the electronic eigenstructure of an exciton in a parabolic quantum dot (QD) has been calculated with a high accuracy by using Finite element method (FEM). We have converted the coordinates of electronlight-hole ... -
Fourier transform technique in variational treatment of two-electron parabolic quantum dot
Şakiroğlu, S.; Yıldız, A.; Doğan, Ue.; Akgüngor, K.; Epik, H.; Ergün, Y.; Sökmen, I. (IOP Publishing LTD, 2009)In this work, we propose an efficient method of reducing the computational effort of variational calculation with a Hylleraas-like trial wavefunction. The method consists of introducing integra transforms for the terms as ... -
Ground state energy of excitons in quantum dot treated variationally via Hylleraas-like wavefunction
Şakiroğlu, S.; Doğan, Ue.; Yıldız, Aylin; Akgüngor, K.; Epik, H.; Ergün, Yüksel; Sökmen, I. (IOP Publishing LTD, 2009)In this work, the effects of quantum confinement on the ground state energy of a correlated electron-hole pair in a spherical and in a disc-like quantum dot have been investigated as a function of quantum dot size. Under ... -
Theoretical investigation of InAs/GaSb type-II pin superlattice infrared detector in the mid wavelength infrared range
Kaya, U.; Hoştut, Mustafa; Kılıç, A.; Şakiroğlu, S.; Sökmen, I.; Ergün, Y.; Aydınlı, A. (Amer Inst Physics, 2013)In this study, we present the theoretical investigation of type-II InAs/GaSb superlattice p-i-n detector. Kronig-Penney and envelope function approximation is used to calculate band gap energy and superlattice minibands. ... -
Variational Computations for Excitons in Quantum Dots: a Quantum Monte Carlo Study
Yıldız, A.; Şakiroğlu, S.; Doğan, U.; Akgüngor, K.; Epik, H.; Sökmen, I.; Ergün, Yüksel (World Scientific Publ Co Pte LTD, 2011)A study of variational wave functions for calculation of the ground-state energies of excitons confined in a two-dimensional (2D) disc-like and three-dimensional (3D) spherical parabolic GaAs quantum dots (QDs) is presented. ... -
Voltage Tunable Dual-Band Quantum-Well Infrared Photodetector for Third-Generation Thermal Imaging
Hoştut, M.; Kılıç, Abidin; Şakiroğlu, S.; Ergün, Yüksel; Sökmen, I. (IEEE-Inst Electrical Electronics Engineers Inc, 2011)We investigate the theoretical calculations of the voltage tunable dual-band quantum-well infrared photodetector (QWIP) in the long and very long wavelength infrared range (LWIR and VLWIR). The detector consists of two ...
