Multisubband Plasmons in Doped ZnO Quantum Wells

被引：20

作者：

Bajo, Miguel Montes ^{[1
]}

Tamayo-Arriola, Julen ^{[1
]}

Hugues, Maxime ^{[2
]}

Ulloa, Jose M. ^{[1
]}

Le Biavan, Nolwenn ^{[2
]}

Peretti, Romain ^{[3
]}

Julien, Francois H. ^{[4
]}

Faist, Jerome ^{[3
]}

Chauveau, Jean-Michel ^{[2
]}

Hierro, Adrian ^{[1
]}

机构：

[1] Univ Politecn Madrid, ISOM, E-28040 Madrid, Spain

[2] Univ Cote dAzur, CNRS, CRHEA, F-06560 Valbonne, France

[3] Swiss Fed Inst Technol, Inst Quantum Elect, Zurich, Switzerland

[4] Univ Paris Saclay, Univ Paris Sud, Orsay C2N, Ctr Nanosci & Nanotechnol,CNRS, F-91405 Orsay, France

来源：

PHYSICAL REVIEW APPLIED | 2018年 / 10卷 / 02期

基金：

欧盟地平线“2020”;

关键词：

INFRARED RADIATION; ABSORPTION; INVERSION; FIELD;

D O I：

10.1103/PhysRevApplied.10.024005

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Intersubband (ISB) transitions are of high significance for light-emitting and light-detecting devices in the infrared and, when involving large electron densities, for plasmonics and strong light-matter coupling physics. Here it is observed that the simultaneously occurring fundamental and excited-state ISB transitions in highly-doped, m-plane ZnO/MgxZn1-xO multiple quantum wells, couple into a single collective oscillation: the multisubband plasmon (MSP). With 2D electron densities up to 4 x 101(3) cm(-2), an outstanding regime is reached in which the observed MSP frequency is three times larger than that of the fundamental ISB transition as a result of depolarization. This effect is analyzed using a dielectric tensor for ZnO including the interaction of the light with the lattice, the in-plane free electrons, and the off-plane MSP. The impact of the broadening of the MSP and its interaction with phonons is discussed. The results presented here show the potential of ZnO/MgxZn1-xO for infrared optoelectronic applications, which can be extended to the THz range with appropriate design of the quantum wells.

引用

页数：8

共 35 条

[1] GAAS, ALAS, AND ALXGA1-XAS - MATERIAL PARAMETERS FOR USE IN RESEARCH AND DEVICE APPLICATIONS [J].

ADACHI, S .

JOURNAL OF APPLIED PHYSICS, 1985, 58 (03) :R1-R29

[2] ABSORPTION OF INFRARED RADIATION BY ELECTRONS IN SEMICONDUCTOR INVERSION LAYERS [J].

ALLEN, SJ ;

TSUI, DC ;

VINTER, B .

SOLID STATE COMMUNICATIONS, 1976, 20 (04) :425-428

[3] Semiclassical theory of multisubband plasmons: Nonlocal electrodynamics and radiative effects [J].

Alpeggiani, Filippo ;

Andreani, Lucio Claudio .

PHYSICAL REVIEW B, 2014, 90 (11)

[4] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS [J].

ANDO, T ;

FOWLER, AB ;

STERN, F .

REVIEWS OF MODERN PHYSICS, 1982, 54 (02) :437-672

[5] Ultra-strong light-matter coupling for designer Reststrahlen band [J].

Askenazi, B. ;

Vasanelli, A. ;

Delteil, A. ;

Todorov, Y. ;

Andreani, L. C. ;

Beaudoin, G. ;

Sagnes, I. ;

Sirtori, C. .

NEW JOURNAL OF PHYSICS, 2014, 16

[6] FARADAY ROTATION IN ZNO - DETERMINATION OF ELECTRON EFFECTIVE MASS [J].

BAER, WS .

PHYSICAL REVIEW, 1967, 154 (03) :785-+

[7] III-nitride semiconductors for intersubband optoelectronics: a review [J].

Beeler, M. ;

Trichas, E. ;

Monroy, E. .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2013, 28 (07)

[8] Intersubband transitions in ZnO multiple quantum wells [J].

Belmoubarik, M. ;

Ohtani, K. ;

Ohno, H. .

APPLIED PHYSICS LETTERS, 2008, 92 (19)

[9] Infrared optical properties of MgxZn1-xO thin films (0 ≤ x ≤ 1):: Long-wavelength optical phonons and dielectric constants [J].

Bundesmann, C. ;

Rahm, A. ;

Lorenz, M. ;

Grundmann, M. ;

Schubert, M. .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (11)

[10] ZEEMAN SPLITTING OF ANOMALOUS SHALLOW BOUND-STATES IN ZNO [J].

BUTTON, KJ ;

LAX, B ;

COHN, DR ;

ORTENBER.MV ;

MOLLWO, E ;

HELBIG, R .

PHYSICAL REVIEW LETTERS, 1972, 28 (25) :1637-&

← 1 2 3 4 →