Macroscopic Two-Dimensional Polariton Condensates

被引：42

作者：

Ballarini, Dario ^{[1
]}

Caputo, Davide ^{[1
,2
]}

Munoz, Carlos Sanchez ^{[3
]}

De Giorgi, Milena ^{[1
]}

Dominici, Lorenzo ^{[1
]}

Szymanska, Marzena H. ^{[4
]}

West, Kenneth ^{[5
]}

Pfeiffer, Loren N. ^{[5
]}

Gigli, Giuseppe ^{[1
,2
]}

Laussy, Fabrice P. ^{[6
,7
]}

Sanvitto, Daniele ^{[1
,8
]}

机构：

[1] CNR, NANOTEC Ist Nanotecnol, Via Monteroni, I-73100 Lecce, Italy

[2] Univ Salerno, Via Arnesano, I-73100 Lecce, Italy

[3] RIKEN, CEMS, Saitama 3510198, Japan

[4] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[5] Princeton Univ, Princeton Inst Sci & Technol Mat, PRISM, Princeton, NJ 08540 USA

[6] Univ Wolverhampton, Fac Sci & Engn, Wulfruna St, Wolverhampton WV1 1LY, W Midlands, England

[7] Russian Quantum Ctr, Novaya 100, Skolkovo 143025, Moscow Region, Russia

[8] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 21期

基金：

英国工程与自然科学研究理事会;

关键词：

BOSE-EINSTEIN CONDENSATION; MICROCAVITY POLARITONS; EXCITON-POLARITONS;

D O I：

10.1103/PhysRevLett.118.215301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a record-size, two-dimensional polariton condensate of a fraction of a millimeter radius free from the presence of an exciton reservoir. This macroscopically occupied state is formed by the ballistically expanding polariton flow that relaxes and condenses over a large area outside of the excitation spot. The density of this trap-free condensate is < 1 polariton /mu m(2), reducing the phase noise induced by the interaction energy. Moreover, the backflow effect, recently predicted for the nonparabolic polariton dispersion, is observed here for the first time in the fast-expanding wave packet.

引用

页数：5

共 47 条

[1] Exciton-polariton spin switches [J].

Amo, A. ;

Liew, T. C. H. ;

Adrados, C. ;

Houdre, R. ;

Giacobino, E. ;

Kavokin, A. V. ;

Bramati, A. .

NATURE PHOTONICS, 2010, 4 (06) :361-366

[2]

[Anonymous], ARXIV161005737

[3] Energy relaxation of exciton-polariton condensates in quasi-one-dimensional microcavities [J].

Anton, C. ;

Liew, T. C. H. ;

Tosi, G. ;

Martin, M. D. ;

Gao, T. ;

Hatzopoulos, Z. ;

Eldridge, P. S. ;

Savvidis, P. G. ;

Vina, L. .

PHYSICAL REVIEW B, 2013, 88 (03)

[4] Synchronized and desynchronized phases of exciton-polariton condensates in the presence of disorder [J].

Baas, A. ;

Lagoudakis, K. G. ;

Richard, M. ;

Andre, R. ;

Dang, Le Si ;

Deveaud-Pledran, B. .

PHYSICAL REVIEW LETTERS, 2008, 100 (17)

[5] Optical bistability in semiconductor microcavities [J].

Baas, A ;

Karr, JP ;

Eleuch, H ;

Giacobino, E .

PHYSICAL REVIEW A, 2004, 69 (02) :8

[6] Bose-einstein condensation of microcavity polaritons in a trap [J].

Balili, R. ;

Hartwell, V. ;

Snoke, D. ;

Pfeiffer, L. ;

West, K. .

SCIENCE, 2007, 316 (5827) :1007-1010

[7] All-optical polariton transistor [J].

Ballarini, D. ;

De Giorgi, M. ;

Cancellieri, E. ;

Houdre, R. ;

Giacobino, E. ;

Cingolani, R. ;

Bramati, A. ;

Gigli, G. ;

Sanvitto, D. .

NATURE COMMUNICATIONS, 2013, 4

[8] Spontaneous polarization buildup in a room-temperature polariton laser [J].

Baumberg, J. J. ;

Kavokin, A. V. ;

Christopoulos, S. ;

Grundy, A. J. D. ;

Butte, R. ;

Christmann, G. ;

Solnyshkov, D. D. ;

Malpuech, G. ;

von Hoegersthal, G. Baldassarri Hoeger ;

Feltin, E. ;

Carlin, J. -F. ;

Grandjean, N. .

PHYSICAL REVIEW LETTERS, 2008, 101 (13)

[9] Parametric oscillation in a vertical microcavity: A polariton condensate or micro-optical parametric oscillation [J].

Baumberg, JJ ;

Savvidis, PG ;

Stevenson, RM ;

Tartakovskii, AI ;

Skolnick, MS ;

Whittaker, DM ;

Roberts, JS .

PHYSICAL REVIEW B, 2000, 62 (24) :16247-16250

[10]

Berloff N. G., ARXIV160706065V1

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