Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field

doi:10.1088/1674-1056/ab9284

中国物理B ›› 2020, Vol. 29 ›› Issue (8): 87302-087302.doi: 10.1088/1674-1056/ab9284

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇下一篇

Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field

Xue-Chao Li(李学超), Chun-Bao Ye(叶纯宝), Juan Gao(高娟), Bing Wang(王兵)

Optoelectronics Physics, Anhui University of Science and Technology, Huainan 232001, China

收稿日期:2020-02-23 修回日期:2020-04-13 出版日期:2020-08-05 发布日期:2020-08-05
通讯作者: Chun-Bao Ye E-mail:cbyeaust@163.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 51702003, 61775087, and 11674312), the Provincial Foundation for Excellent Top Talents of Colleges and Universities of Anhui Province of China (Grant No. gxgwfx2019016), the Anhui Provincial Natural Science Foundation, China (Grant Nos. 1808085ME130 and 1508085QF140), University Outstanding Young Talents Support Program Fund (Grant No. gxyqZD2018039).

Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field

Xue-Chao Li(李学超), Chun-Bao Ye(叶纯宝), Juan Gao(高娟), Bing Wang(王兵)

Optoelectronics Physics, Anhui University of Science and Technology, Huainan 232001, China

Received:2020-02-23 Revised:2020-04-13 Online:2020-08-05 Published:2020-08-05
Contact: Chun-Bao Ye E-mail:cbyeaust@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 51702003, 61775087, and 11674312), the Provincial Foundation for Excellent Top Talents of Colleges and Universities of Anhui Province of China (Grant No. gxgwfx2019016), the Anhui Provincial Natural Science Foundation, China (Grant Nos. 1808085ME130 and 1508085QF140), University Outstanding Young Talents Support Program Fund (Grant No. gxyqZD2018039).

摘要/Abstract

摘要： We theoretically investigate the optical absorption coefficient (OAC) in asymmetrical Gaussian potential quantum dots subject to an applied electric field. Confined wave functions together with energies of electron energies in an effective mass approximation framework are obtained. The OAC is expressed according to the iterative method and the compact-density-matrix approach. Based on our results, OAC is sensitively dependent on external electric field together with the incident optical intensity. Additionally, peak shifts into greater energy as the quantum dot radius decrease. Moreover, the parameters of Gaussian potential have a significant influence on the OAC.

关键词: electric field, optical absorption, quantum dot

Abstract: We theoretically investigate the optical absorption coefficient (OAC) in asymmetrical Gaussian potential quantum dots subject to an applied electric field. Confined wave functions together with energies of electron energies in an effective mass approximation framework are obtained. The OAC is expressed according to the iterative method and the compact-density-matrix approach. Based on our results, OAC is sensitively dependent on external electric field together with the incident optical intensity. Additionally, peak shifts into greater energy as the quantum dot radius decrease. Moreover, the parameters of Gaussian potential have a significant influence on the OAC.

Key words: electric field, optical absorption, quantum dot

中图分类号: (Quantum dots)

73.21.La

94.20.Ss (Electric fields; current system) 33.80.-b (Photon interactions with molecules)

李学超, 叶纯宝, 高娟, 王兵. Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field[J]. 中国物理B, 2020, 29(8): 87302-087302.

Xue-Chao Li(李学超), Chun-Bao Ye(叶纯宝), Juan Gao(高娟), Bing Wang(王兵). Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field[J]. Chin. Phys. B, 2020, 29(8): 87302-087302.

[1]	Rossetti R, Nakahara S and Brus L E 1983 J. Chem. Phys. 79 1086 doi: 10.1063/1.445834
[2]	Murray C B, Norris D J and Bawendi M G 1993 J. Am. Chem. Soc. 115 8706 doi: 10.1021/ja00072a025
[3]	Chang K and Xia J B 1998 J. Appl. Phys. 84 1454 doi: 10.1063/1.368207
[4]	Chang K and Xia J B 1998 Phys. Rev. B 57 9780 doi: 10.1103/PhysRevB.57.9780
[5]	Chang K and Xia J B 1997 Solid State Commun. 104 351 doi: 10.1016/S0038-1098(97)00328-1
[6]	Li S S, Chang K and Xia J B 2005 Phys. Rev. B 71 155301 doi: 10.1103/PhysRevB.71.155301
[7]	Zhang C J, Min C and Zhao B 2019 Phys. Lett. A 383 125983 doi: 10.1016/j.physleta.2019.125983
[8]	Çakir B, Yakar Y and Özmen A 2012 J. Lumin. 132 2659 doi: 10.1016/j.jlumin.2012.03.065
[9]	Zhang C J and Liu C P 2019 Opt. Express 27 37034 doi: 10.1364/OE.27.037034
[10]	Zhang C J and Liu C P 2019 Laser Phys. Lett. 17 125401 doi: 10.1088/1612-202X/ab5644
[11]	Bejan D 2016 Phys. Lett. A 380 3836 doi: 10.1016/j.physleta.2016.09.020
[12]	Ju K K, Guo C X and Pan X Y 2017 Chin. Phys. B 26 097103 doi: 10.1088/1674-1056/26/9/097103
[13]	Bahramiyan H 2018 Opt. Mater. 75 187 doi: 10.1016/j.optmat.2017.10.014
[14]	Kasapoglu E, Ungan F, Duque C A, Yesilgul U, Mora-Ramos M E, Sari H and Sökmen I 2014 Physica E 61 107 doi: 10.1016/j.physe.2014.03.024
[15]	Sari H, Yesilgul U, Ungan F, Sakiroglu S, Kasapoglu E and Sökmen I 2017 Chem. Phys. 487 11 doi: 10.1016/j.chemphys.2017.02.004
[16]	Aalu B 2019 Physica B 575 411699 doi: 10.1016/j.physb.2019.411699
[17]	Mandal A, Sarkai A, Ghosh A P and Ghosh M 2015 Chem. Phys. 463 149 doi: 10.1016/j.chemphys.2015.10.014
[18]	Zhang Z Z, Zou L L, Liu C L and Yuan J H 2015 Superlatt. Microstruct. 85 385 doi: 10.1016/j.spmi.2015.06.003
[19]	Çakir B, Yakar Y and Özmen A 2017 Physica B 510 86 doi: 10.1016/j.physb.2017.01.018
[20]	Ghajarpour N S and Karimi M J 2018 Opt. Mater. 82 75 doi: 10.1016/j.optmat.2018.05.045
[21]	Al E B, Kasapoglu E, Sakiroglu S, Duque C A and Sökmen I 2018 J. Mol. Struct. 1157 288 doi: 10.1016/j.molstruc.2017.12.068
[22]	Zhang C J and Liu C P 2016 Phys. Lett. A 380 3233 doi: 10.1016/j.physleta.2016.07.062
[23]	Chen Y Y, Feng X L and Liu C P 2016 Phys. Rev. Lett. 117 023901 doi: 10.1103/PhysRevLett.117.023901
[24]	Zhang C J, Wu E, Gu M L, Hu Z F and Liu C P 2017 Phys. Rev. A 96 033854 doi: 10.1103/PhysRevA.96.033854
[25]	Zhang C J, Wu E, Gu M L, Hu Z F and Liu C P 2017 Opt. Express 25 21241 doi: 10.1364/OE.25.021241
[26]	Xie W F 2004 Commun. Theor. Phys. 42 151 doi: 10.1088/0253-6102/42/1/151
[27]	Wu J H, Guo K X and Liu G 2014 Physica B 446 59 doi: 10.1016/j.physb.2014.04.013
[28]	Kirak M, Yilmaz S, Şahin M and Gençaslan M 2011 J. Appl. Phys. 109 094309 doi: 10.1063/1.3582137
[29]	Karimi M J, Keshavarz A and Poostforush A 2011 Superlatt. Microstruct. 49 441 doi: 10.1016/j.spmi.2011.01.003
[30]	Guo A X and Du J F 2013 Superlatt. Microstruct. 64 158 doi: 10.1016/j.spmi.2013.08.030
[31]	Ungan F, Restrepo R L, Mora-Ramos M E, Morales A L and Duque C A 2014 Physica B 434 26 doi: 10.1016/j.physb.2013.10.053

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Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field

Optical absorption in asymmetrical Gaussian potential quantum dot under the application of an electric field

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