TY  - JOUR
AU  - Erich, Marko
AU  - Radovanović, Jelena V.
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
AU  - Indjin, Dragan
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3437
AB  - We have analyzed the influence of Dresselhaus and Rashba spin-orbit couplings (caused by the bulk inversion asymmetry and the structural asymmetry, respectively) on electron tunneling through a double- and triple-barrier structures, with and without an externally applied electric field. The results indicate that the degree of structural asymmetry and external electric field can greatly affect the dwell times of electrons with opposite spin orientation. This opens up the possibilities of obtaining efficient spin separation in the time domain. The material system of choice is AlxGa1-xSb, and the presented model takes into account the position dependence of material parameters, as well as the effects of band nonparabolicity. (C) 2008 American Institute of Physics.
T2  - Journal of Applied Physics
T1  - Spin-dependent dwell times of electron tunneling through double- and triple-barrier structures
VL  - 103
IS  - 8
DO  - 10.1063/1.2904869
ER  - 

@article{
author = "Erich, Marko and Radovanović, Jelena V. and Milanović, Vitomir B. and Ikonić, Zoran and Indjin, Dragan",
year = "2008",
abstract = "We have analyzed the influence of Dresselhaus and Rashba spin-orbit couplings (caused by the bulk inversion asymmetry and the structural asymmetry, respectively) on electron tunneling through a double- and triple-barrier structures, with and without an externally applied electric field. The results indicate that the degree of structural asymmetry and external electric field can greatly affect the dwell times of electrons with opposite spin orientation. This opens up the possibilities of obtaining efficient spin separation in the time domain. The material system of choice is AlxGa1-xSb, and the presented model takes into account the position dependence of material parameters, as well as the effects of band nonparabolicity. (C) 2008 American Institute of Physics.",
journal = "Journal of Applied Physics",
title = "Spin-dependent dwell times of electron tunneling through double- and triple-barrier structures",
volume = "103",
number = "8",
doi = "10.1063/1.2904869"
}

Erich, M., Radovanović, J. V., Milanović, V. B., Ikonić, Z.,& Indjin, D.. (2008). Spin-dependent dwell times of electron tunneling through double- and triple-barrier structures. in Journal of Applied Physics, 103(8).
https://doi.org/10.1063/1.2904869

Erich M, Radovanović JV, Milanović VB, Ikonić Z, Indjin D. Spin-dependent dwell times of electron tunneling through double- and triple-barrier structures. in Journal of Applied Physics. 2008;103(8).
doi:10.1063/1.2904869 .

Erich, Marko, Radovanović, Jelena V., Milanović, Vitomir B., Ikonić, Zoran, Indjin, Dragan, "Spin-dependent dwell times of electron tunneling through double- and triple-barrier structures" in Journal of Applied Physics, 103, no. 8 (2008),
https://doi.org/10.1063/1.2904869 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Tadić, Milan Ž.
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2345
AB  - A systematic procedure is described for the maximization of gain in optically pumped intersubband lasers, via optimal tailoring of the quantum well profile. The procedure relies on using the inverse spectral theory, allowing one to shift the bound states as desired, and additionally to make the isospectral reshaping of the well, with the eventual aim of finding the best combination of those optical dipole and electron-phonon scattering matrix elements which are relevant for the laser gain. Example design is presented for a laser based on the AlxGa1-xAs system, and the band nonparabolicity is accounted for in the final design. (C) 2000 American Institute of Physics. [S0021-8979(00)01511-5].
T2  - Journal of Applied Physics
T1  - The optimization of optical gain in the intersubband quantum well laser
VL  - 87
IS  - 11
SP  - 7965
EP  - 7972
DO  - 10.1063/1.373481
ER  - 

@article{
author = "Tomić, Stanko and Tadić, Milan Ž. and Milanović, Vitomir B. and Ikonić, Zoran",
year = "2000",
abstract = "A systematic procedure is described for the maximization of gain in optically pumped intersubband lasers, via optimal tailoring of the quantum well profile. The procedure relies on using the inverse spectral theory, allowing one to shift the bound states as desired, and additionally to make the isospectral reshaping of the well, with the eventual aim of finding the best combination of those optical dipole and electron-phonon scattering matrix elements which are relevant for the laser gain. Example design is presented for a laser based on the AlxGa1-xAs system, and the band nonparabolicity is accounted for in the final design. (C) 2000 American Institute of Physics. [S0021-8979(00)01511-5].",
journal = "Journal of Applied Physics",
title = "The optimization of optical gain in the intersubband quantum well laser",
volume = "87",
number = "11",
pages = "7965-7972",
doi = "10.1063/1.373481"
}

Tomić, S., Tadić, M. Ž., Milanović, V. B.,& Ikonić, Z.. (2000). The optimization of optical gain in the intersubband quantum well laser. in Journal of Applied Physics, 87(11), 7965-7972.
https://doi.org/10.1063/1.373481

Tomić S, Tadić MŽ, Milanović VB, Ikonić Z. The optimization of optical gain in the intersubband quantum well laser. in Journal of Applied Physics. 2000;87(11):7965-7972.
doi:10.1063/1.373481 .

Tomić, Stanko, Tadić, Milan Ž., Milanović, Vitomir B., Ikonić, Zoran, "The optimization of optical gain in the intersubband quantum well laser" in Journal of Applied Physics, 87, no. 11 (2000):7965-7972,
https://doi.org/10.1063/1.373481 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Milanović, Vitomir B.
AU  - Tadić, Milan Ž.
AU  - Ikonić, Zoran
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2304
AB  - A systematic procedure is described for the maximization of gain in optically pumped intersubband lasers, via tailoring the quantum well potential. The procedure relies on the inverse spectral theory, which enables shifting bound states in a quantum well. By varying the free parameters appearing in this procedure one can design a convenient optimized structure. An design example is presented for an AlxGa1-xAs alloy based well, and the band nonparabolicity effects are accounted for. (C) 1999 Elsevier Science Ltd. All rights reserved.
T2  - Solid State Communications
T1  - Gain optimization in intersubband quantum well lasers by inverse spectral theory
VL  - 113
IS  - 4
SP  - 221
EP  - 226
DO  - 10.1016/S0038-1098(99)00434-2
ER  - 

@article{
author = "Tomić, Stanko and Milanović, Vitomir B. and Tadić, Milan Ž. and Ikonić, Zoran",
year = "1999",
abstract = "A systematic procedure is described for the maximization of gain in optically pumped intersubband lasers, via tailoring the quantum well potential. The procedure relies on the inverse spectral theory, which enables shifting bound states in a quantum well. By varying the free parameters appearing in this procedure one can design a convenient optimized structure. An design example is presented for an AlxGa1-xAs alloy based well, and the band nonparabolicity effects are accounted for. (C) 1999 Elsevier Science Ltd. All rights reserved.",
journal = "Solid State Communications",
title = "Gain optimization in intersubband quantum well lasers by inverse spectral theory",
volume = "113",
number = "4",
pages = "221-226",
doi = "10.1016/S0038-1098(99)00434-2"
}

Tomić, S., Milanović, V. B., Tadić, M. Ž.,& Ikonić, Z.. (1999). Gain optimization in intersubband quantum well lasers by inverse spectral theory. in Solid State Communications, 113(4), 221-226.
https://doi.org/10.1016/S0038-1098(99)00434-2

Tomić S, Milanović VB, Tadić MŽ, Ikonić Z. Gain optimization in intersubband quantum well lasers by inverse spectral theory. in Solid State Communications. 1999;113(4):221-226.
doi:10.1016/S0038-1098(99)00434-2 .

Tomić, Stanko, Milanović, Vitomir B., Tadić, Milan Ž., Ikonić, Zoran, "Gain optimization in intersubband quantum well lasers by inverse spectral theory" in Solid State Communications, 113, no. 4 (1999):221-226,
https://doi.org/10.1016/S0038-1098(99)00434-2 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2117
AB  - A procedure for the design of quantum well structures optimized in respect to the intersubband resonant optical rectification generation is proposed. It relies on the inverse spectral theory, allowing one to generate a family of potentials with prescribed level energies, and additionally vary the potential shape in an isospectral manner, via a scalar parameter. (C) 1998 Elsevier Science B.V.
T2  - Physics Letters A
T1  - Quantum well shape tailoring via inverse spectral theory: Optimization of nonlinear optical rectification
VL  - 238
IS  - 6
SP  - 385
EP  - 389
DO  - 10.1016/S0375-9601(97)00909-2
ER  - 

@article{
author = "Tomić, Stanko and Milanović, Vitomir B. and Ikonić, Zoran",
year = "1998",
abstract = "A procedure for the design of quantum well structures optimized in respect to the intersubband resonant optical rectification generation is proposed. It relies on the inverse spectral theory, allowing one to generate a family of potentials with prescribed level energies, and additionally vary the potential shape in an isospectral manner, via a scalar parameter. (C) 1998 Elsevier Science B.V.",
journal = "Physics Letters A",
title = "Quantum well shape tailoring via inverse spectral theory: Optimization of nonlinear optical rectification",
volume = "238",
number = "6",
pages = "385-389",
doi = "10.1016/S0375-9601(97)00909-2"
}

Tomić, S., Milanović, V. B.,& Ikonić, Z.. (1998). Quantum well shape tailoring via inverse spectral theory: Optimization of nonlinear optical rectification. in Physics Letters A, 238(6), 385-389.
https://doi.org/10.1016/S0375-9601(97)00909-2

Tomić S, Milanović VB, Ikonić Z. Quantum well shape tailoring via inverse spectral theory: Optimization of nonlinear optical rectification. in Physics Letters A. 1998;238(6):385-389.
doi:10.1016/S0375-9601(97)00909-2 .

Tomić, Stanko, Milanović, Vitomir B., Ikonić, Zoran, "Quantum well shape tailoring via inverse spectral theory: Optimization of nonlinear optical rectification" in Physics Letters A, 238, no. 6 (1998):385-389,
https://doi.org/10.1016/S0375-9601(97)00909-2 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2163
AB  - A procedure for the design of quantum well structures optimized as regards intersubband double-resonant second-harmonic generation is proposed. It relies on the inverse spectral theory, allowing one to start from an arbitrary potential and shift its levels to the positions required for a particular application, in this case such that they become equispaced. The free parameters that appear, and determine the shape of the modified potential, are then varied in order to find the optimal potential shape that maximizes the nonlinearity, while level energies are automatically fixed throughout this variation. Furthermore, the procedure is adapted to handle cases of variable effective mass, unlike the conventional inverse spectral theory. The use of this procedure is demonstrated by the designing of a graded AlGaAs ternary alloy quantum well optimized for second-order nonlinearity at 10.6 mu m. Starting with a truncated parabolic potential, the final optimized quantum well potential is obtained, with nonlinearity exceeding values previously obtained in the literature.
T2  - Journal of Physics: Condensed Matter
T1  - Quantum well shape tailoring via inverse spectral theory: optimizing resonant second-harmonic generation
VL  - 10
IS  - 29
SP  - 6523
EP  - 6532
DO  - 10.1088/0953-8984/10/29/012
ER  - 

@article{
author = "Tomić, Stanko and Milanović, Vitomir B. and Ikonić, Zoran",
year = "1998",
abstract = "A procedure for the design of quantum well structures optimized as regards intersubband double-resonant second-harmonic generation is proposed. It relies on the inverse spectral theory, allowing one to start from an arbitrary potential and shift its levels to the positions required for a particular application, in this case such that they become equispaced. The free parameters that appear, and determine the shape of the modified potential, are then varied in order to find the optimal potential shape that maximizes the nonlinearity, while level energies are automatically fixed throughout this variation. Furthermore, the procedure is adapted to handle cases of variable effective mass, unlike the conventional inverse spectral theory. The use of this procedure is demonstrated by the designing of a graded AlGaAs ternary alloy quantum well optimized for second-order nonlinearity at 10.6 mu m. Starting with a truncated parabolic potential, the final optimized quantum well potential is obtained, with nonlinearity exceeding values previously obtained in the literature.",
journal = "Journal of Physics: Condensed Matter",
title = "Quantum well shape tailoring via inverse spectral theory: optimizing resonant second-harmonic generation",
volume = "10",
number = "29",
pages = "6523-6532",
doi = "10.1088/0953-8984/10/29/012"
}

Tomić, S., Milanović, V. B.,& Ikonić, Z.. (1998). Quantum well shape tailoring via inverse spectral theory: optimizing resonant second-harmonic generation. in Journal of Physics: Condensed Matter, 10(29), 6523-6532.
https://doi.org/10.1088/0953-8984/10/29/012

Tomić S, Milanović VB, Ikonić Z. Quantum well shape tailoring via inverse spectral theory: optimizing resonant second-harmonic generation. in Journal of Physics: Condensed Matter. 1998;10(29):6523-6532.
doi:10.1088/0953-8984/10/29/012 .

Tomić, Stanko, Milanović, Vitomir B., Ikonić, Zoran, "Quantum well shape tailoring via inverse spectral theory: optimizing resonant second-harmonic generation" in Journal of Physics: Condensed Matter, 10, no. 29 (1998):6523-6532,
https://doi.org/10.1088/0953-8984/10/29/012 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2179
AB  - A systematic procedure is proposed for the optimized design of semiconductor quantum well structures that provide maximal values of the resonant optical rectification coefficient. It relies on employing supersymmetric quantum mechanics to vary a starting potential in the isospectral manner, via the Variation of a single scalar parameter, in search of the largest available value of the appropriate product of matrix elements (difference of permanent moment times, the transition dipole moment squared, in this instance). An example the design of the structure matched for the optical rectification of 10.6 mu m (CO2 laser) radiation is presented that starts from the truncated parabolic potential and delivers the rectification coefficient in excess of the best value reported in literature. The possibility of realization of optimized structures is also discussed.
T2  - Solid State Phenomena
T1  - Optimization of nonlinear optical rectification in parabolic quantum wells using supersymmetric quantum mechanics
VL  - 61-2
SP  - 215
EP  - 218
DO  - 10.4028/www.scientific.net/SSP.61-62.215
ER  - 

@article{
author = "Tomić, Stanko and Milanović, Vitomir B. and Ikonić, Zoran",
year = "1998",
abstract = "A systematic procedure is proposed for the optimized design of semiconductor quantum well structures that provide maximal values of the resonant optical rectification coefficient. It relies on employing supersymmetric quantum mechanics to vary a starting potential in the isospectral manner, via the Variation of a single scalar parameter, in search of the largest available value of the appropriate product of matrix elements (difference of permanent moment times, the transition dipole moment squared, in this instance). An example the design of the structure matched for the optical rectification of 10.6 mu m (CO2 laser) radiation is presented that starts from the truncated parabolic potential and delivers the rectification coefficient in excess of the best value reported in literature. The possibility of realization of optimized structures is also discussed.",
journal = "Solid State Phenomena",
title = "Optimization of nonlinear optical rectification in parabolic quantum wells using supersymmetric quantum mechanics",
volume = "61-2",
pages = "215-218",
doi = "10.4028/www.scientific.net/SSP.61-62.215"
}

Tomić, S., Milanović, V. B.,& Ikonić, Z.. (1998). Optimization of nonlinear optical rectification in parabolic quantum wells using supersymmetric quantum mechanics. in Solid State Phenomena, 61-2, 215-218.
https://doi.org/10.4028/www.scientific.net/SSP.61-62.215

Tomić S, Milanović VB, Ikonić Z. Optimization of nonlinear optical rectification in parabolic quantum wells using supersymmetric quantum mechanics. in Solid State Phenomena. 1998;61-2:215-218.
doi:10.4028/www.scientific.net/SSP.61-62.215 .

Tomić, Stanko, Milanović, Vitomir B., Ikonić, Zoran, "Optimization of nonlinear optical rectification in parabolic quantum wells using supersymmetric quantum mechanics" in Solid State Phenomena, 61-2 (1998):215-218,
https://doi.org/10.4028/www.scientific.net/SSP.61-62.215 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2078
AB  - A systematic procedure is proposed for the design of ternary alloys based quantum-well structures optimized for double-resonance second-harmonic generation. The method relies on the supersymmetric quantum mechanics as derived here for the case of position-dependent effective mass. Starting from a symmetric, truncated quasiparabolic potential, itself lacking any second-order nonlinearity, we generate a family of asymmetric potentials, fully isospectral with the starting potential, and choose the one which maximizes the product of transition matrix elements relevant for the second-order nonlinearity. Realization of the optimized potential (in an approximate manner) by grading the ternary alloy AlxGa1-xAs is then described. The best value of nonlinear susceptibility obtained exceeds those reported in the literature.
T2  - Physical Review B: Condensed Matter and Materials Physics
T1  - Optimization of intersubband resonant second-order susceptibility in asymmetric graded AlxGa1-xAs quantum wells using supersymmetric quantum mechanics
VL  - 56
IS  - 3
SP  - 1033
EP  - 1036
DO  - 10.1103/PhysRevB.56.1033
ER  - 

@article{
author = "Tomić, Stanko and Milanović, Vitomir B. and Ikonić, Zoran",
year = "1997",
abstract = "A systematic procedure is proposed for the design of ternary alloys based quantum-well structures optimized for double-resonance second-harmonic generation. The method relies on the supersymmetric quantum mechanics as derived here for the case of position-dependent effective mass. Starting from a symmetric, truncated quasiparabolic potential, itself lacking any second-order nonlinearity, we generate a family of asymmetric potentials, fully isospectral with the starting potential, and choose the one which maximizes the product of transition matrix elements relevant for the second-order nonlinearity. Realization of the optimized potential (in an approximate manner) by grading the ternary alloy AlxGa1-xAs is then described. The best value of nonlinear susceptibility obtained exceeds those reported in the literature.",
journal = "Physical Review B: Condensed Matter and Materials Physics",
title = "Optimization of intersubband resonant second-order susceptibility in asymmetric graded AlxGa1-xAs quantum wells using supersymmetric quantum mechanics",
volume = "56",
number = "3",
pages = "1033-1036",
doi = "10.1103/PhysRevB.56.1033"
}

Tomić, S., Milanović, V. B.,& Ikonić, Z.. (1997). Optimization of intersubband resonant second-order susceptibility in asymmetric graded AlxGa1-xAs quantum wells using supersymmetric quantum mechanics. in Physical Review B: Condensed Matter and Materials Physics, 56(3), 1033-1036.
https://doi.org/10.1103/PhysRevB.56.1033

Tomić S, Milanović VB, Ikonić Z. Optimization of intersubband resonant second-order susceptibility in asymmetric graded AlxGa1-xAs quantum wells using supersymmetric quantum mechanics. in Physical Review B: Condensed Matter and Materials Physics. 1997;56(3):1033-1036.
doi:10.1103/PhysRevB.56.1033 .

Tomić, Stanko, Milanović, Vitomir B., Ikonić, Zoran, "Optimization of intersubband resonant second-order susceptibility in asymmetric graded AlxGa1-xAs quantum wells using supersymmetric quantum mechanics" in Physical Review B: Condensed Matter and Materials Physics, 56, no. 3 (1997):1033-1036,
https://doi.org/10.1103/PhysRevB.56.1033 . .

TY  - JOUR
AU  - Tomić, Stanko
AU  - Milanović, Vitomir B.
AU  - Ikonić, Zoran
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2092
AB  - A systematic procedure is proposed for optimized design of semiconductor quantum well structures that provide maximal values of the resonant optical rectification coefficient. It relies on employing supersymmetric quantum mechanics to vary the starting potential in the isospectral manner, via the variation of a single scalar parameter, in search of the largest available value of the appropriate product of matrix elements (difference of permanent moments times the transition dipole moment squared, in this instance). An example design of the structure matched for the optical rectification of 10.6 mu m (CO2 laser) radiation is presented. It starts from the truncated parabolic potential and delivers a rectification coefficient in excess of the best value reported in the literature. The possibility of realization of optimized structures is also discussed. (C) 1997 Elsevier Science B.V.
T2  - Optics Communications
T1  - Optimization of nonlinear optical rectification in quantum wells using the supersymmetric quantum mechanics
VL  - 143
IS  - 4-6
SP  - 214
EP  - 218
DO  - 10.1016/S0030-4018(97)00371-4
ER  - 

@article{
author = "Tomić, Stanko and Milanović, Vitomir B. and Ikonić, Zoran",
year = "1997",
abstract = "A systematic procedure is proposed for optimized design of semiconductor quantum well structures that provide maximal values of the resonant optical rectification coefficient. It relies on employing supersymmetric quantum mechanics to vary the starting potential in the isospectral manner, via the variation of a single scalar parameter, in search of the largest available value of the appropriate product of matrix elements (difference of permanent moments times the transition dipole moment squared, in this instance). An example design of the structure matched for the optical rectification of 10.6 mu m (CO2 laser) radiation is presented. It starts from the truncated parabolic potential and delivers a rectification coefficient in excess of the best value reported in the literature. The possibility of realization of optimized structures is also discussed. (C) 1997 Elsevier Science B.V.",
journal = "Optics Communications",
title = "Optimization of nonlinear optical rectification in quantum wells using the supersymmetric quantum mechanics",
volume = "143",
number = "4-6",
pages = "214-218",
doi = "10.1016/S0030-4018(97)00371-4"
}

Tomić, S., Milanović, V. B.,& Ikonić, Z.. (1997). Optimization of nonlinear optical rectification in quantum wells using the supersymmetric quantum mechanics. in Optics Communications, 143(4-6), 214-218.
https://doi.org/10.1016/S0030-4018(97)00371-4

Tomić S, Milanović VB, Ikonić Z. Optimization of nonlinear optical rectification in quantum wells using the supersymmetric quantum mechanics. in Optics Communications. 1997;143(4-6):214-218.
doi:10.1016/S0030-4018(97)00371-4 .

Tomić, Stanko, Milanović, Vitomir B., Ikonić, Zoran, "Optimization of nonlinear optical rectification in quantum wells using the supersymmetric quantum mechanics" in Optics Communications, 143, no. 4-6 (1997):214-218,
https://doi.org/10.1016/S0030-4018(97)00371-4 . .