Laser effects on the oscillator strength for the intraband transitions in CdS/SiO2 quantum dots

被引:3
|
作者
Radu, Adrian [1 ]
机构
[1] Univ Politehn Bucuresti, Dept Phys, RO-060042 Bucharest, Romania
来源
ADVANCED TOPICS IN OPTOELECTRONICS, MICROELECTRONICS, AND NANOTECHNOLOGIES VI | 2012年 / 8411卷
关键词
quantum dot; laser field; conduction subbands; intraband transitions; oscillator strength; INTERSUBBAND TRANSITION; ELECTRIC-FIELD; WELL WIRE; STATES; ABSORPTION; EXCITON;
D O I
10.1117/12.970485
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
II-VI semiconductor nanostructures are particularly interesting due to their potential applications in novel optoelectronic devices. There have been many advances in the field, but relatively little work has been done on II-VI semiconductor low-dimensional systems under non-resonant laser radiation. Although the potential outcomes may be important for designing tunable optical devices, they involve complicated numerical techniques. Dealing with nano-scale problems frequently implies tricky mathematical issues as the non-analytical solutions. In this paper we investigate the effects of the laser field radiation on the electronic subband levels in cylindrical CdS/SiO2 quantum dots. Understanding the laser effects on the oscillator strength for the intraband transitions in CdS/SiO2 quantum dots may be relevant in the quantitative interpretation of the future experimental data related to this kind of structures. Our results prove that laser radiation could be used for tuning the quantum dots optical absorption/emission.
引用
收藏
页数:8
相关论文
共 50 条
  • [21] PHASE PER COLATION TRANSITION AND EMISSION OF EXCITONS IN FILMS WITH CdS QUANTUM DOTS ON SiO2 SURFACE
    Bondar, N. V.
    Brodyn, M. S.
    Matveevskaya, N. A.
    JOURNAL OF APPLIED SPECTROSCOPY, 2018, 85 (05) : 875 - 879
  • [22] Phase Per Colation Transition and Emission of Excitons in Films With CdS Quantum Dots on SiO2 Surface
    N. V. Bondar
    M. S. Brodyn
    N. A. Matveevskaya
    Journal of Applied Spectroscopy, 2018, 85 : 875 - 879
  • [23] PbTe quantum dots -: SiO2 multilayers for optical devices produced by laser ablation
    Rodriguez, E
    Jimenez, E
    Padilha, LA
    de Araújo, CB
    César, CL
    Barbosa, LC
    Quantum Dots, Nanoparticles, and Nonoclusters II, 2005, 5734 : 116 - 123
  • [24] Nucleation kinetics of Si quantum dots on SiO2
    Nicotra, G. (giuseppe.nicotra@imm.cnr.it), 1600, American Institute of Physics Inc. (95):
  • [25] SiO2 Beads with Quantum Dots: Synthesis and Bioapplication
    Yang, Ping
    Murase, Norio
    Zhang, Ai Yu
    Cao, Yong Qiang
    Zhu, Yuan Na
    Shi, Rui Xia
    EMERGING FOCUS ON ADVANCED MATERIALS, PTS 1 AND 2, 2011, 306-307 : 16 - +
  • [26] Nucleation kinetics of Si quantum dots on SiO2
    Nicotra, G
    Puglisi, RA
    Lombardo, S
    Spinella, C
    Vulpio, M
    Ammendola, G
    Bileci, M
    Gerardi, C
    JOURNAL OF APPLIED PHYSICS, 2004, 95 (04) : 2049 - 2055
  • [27] Carrier relaxation in Si/SiO2 quantum dots
    Prokofiev, A. A.
    Goupalov, S. V.
    Moskalenko, A. S.
    Poddubny, A. N.
    Yassievich, I. N.
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2009, 41 (06): : 969 - 971
  • [28] Optical phenomena connected with intraband carrier transitions in quantum dots and quantum wells
    Vorobjev, LE
    Danilov, SN
    Gluhovskoy, AV
    Zerova, VL
    Zibik, EA
    Panevin, VY
    Firsov, DA
    Shalygin, VA
    Andreev, AD
    Volovik, BV
    Zhukov, AE
    Ledentsov, NN
    Livshits, DA
    Ustinov, VM
    Shernyakov, YM
    Tsatsulnikov, AF
    Weber, A
    Grundmann, M
    Schmidt, SR
    Seilmeier, A
    Towe, E
    Pal, D
    NANOTECHNOLOGY, 2001, 12 (04) : 462 - 465
  • [29] Optical phenomena connected with intraband carrier transitions in quantum dots and quantum wells
    Vorobjev, LE
    Danilov, SN
    Gluhovskoy, AV
    Zerova, VL
    Zibik, EA
    Panevin, VY
    Firsov, DA
    Shalygin, VA
    Andreev, AD
    Volovik, BV
    Zhukov, AE
    Ledentsov, NN
    Livshits, DA
    Ustinov, VM
    Shernyakov, YM
    Tsatsulnikov, AF
    Weber, A
    Grundmann, M
    Schmidt, SR
    Seilmeier, A
    Towe, E
    Pal, D
    IZVESTIYA AKADEMII NAUK SERIYA FIZICHESKAYA, 2002, 66 (02): : 231 - 235
  • [30] Origin of Intraband Optical Transitions in Ag2Se Colloidal Quantum Dots
    Scimeca, Michael R.
    Mattu, Navkawal
    Paredes, Ingrid J.
    Tran, Minh N.
    Paul, Shlok Joseph
    Aydil, Eray S.
    Sahu, Ayaskanta
    JOURNAL OF PHYSICAL CHEMISTRY C, 2021, 125 (31): : 17556 - 17564