Optical sectioning by multiexcitonic ladder climbing in colloidal quantum dots

被引：6

作者：

Ben-Haim, Nir R. ^{[1
]}

Oron, Dan ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

来源：

OPTICS LETTERS | 2008年 / 33卷 / 18期

基金：

以色列科学基金会;

关键词：

D O I：

10.1364/OL.33.002089

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical sectioning is performed by collecting the fluorescent emission of two-exciton states in colloidal quantum dots. The two-exciton state is created by two consecutive resonant absorption events, thus requiring unprecedented low excitation energy and peak powers as low as 105 W/cm(2). The depth resolution is shown to be equivalent to that of standard multiphoton microscopy, and it was found to deteriorate only slowly as saturation of the two-exciton state is approached, owing to signal contribution from higher excitonic states. (C) 2008 Optical Society of America

引用

页码：2089 / 2091

页数：3

共 19 条

[1] Stimulated emission from the biexciton in a single self-assembled II-VI quantum dot - art. no. 067401 [J].

Akimov, IA ;

Andrews, JT ;

Henneberger, F .

PHYSICAL REVIEW LETTERS, 2006, 96 (06)

[2] Nonlinear scanning laser microscopy by third harmonic generation [J].

Barad, Y ;

Eisenberg, H ;

Horowitz, M ;

Silberberg, Y .

APPLIED PHYSICS LETTERS, 1997, 70 (08) :922-924

[3] Giant multishell CdSe nanocrystal quantum dots with suppressed blinking [J].

Chen, Yongfen ;

Vela, Javier ;

Htoon, Han ;

Casson, Joanna L. ;

Werder, Donald J. ;

Bussian, David A. ;

Klimov, Victor I. ;

Hollingsworth, Jennifer A. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (15) :5026-5027

[4] 2-PHOTON LASER SCANNING FLUORESCENCE MICROSCOPY [J].

DENK, W ;

STRICKLER, JH ;

WEBB, WW .

SCIENCE, 1990, 248 (4951) :73-76

[5] Multiexciton fluorescence from semiconductor nanocrystals [J].

Fisher, B ;

Caruge, JM ;

Chan, YT ;

Halpert, J ;

Bawendi, MG .

CHEMICAL PHYSICS, 2005, 318 (1-2) :71-81

[6] 2ND-HARMONIC IMAGING IN SCANNING OPTICAL MICROSCOPE [J].

GANNAWAY, JN ;

SHEPPARD, CJR .

OPTICAL AND QUANTUM ELECTRONICS, 1978, 10 (05) :435-439

[7] Type-II quantum dots: CdTe/CdSe(core/shell) and CdSe/ZinTe(core/shell) heterostructures [J].

Kim, S ;

Fisher, B ;

Eisler, HJ ;

Bawendi, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (38) :11466-11467

[8] Quantization of multiparticle Auger rates in semiconductor quantum dots [J].

Klimov, VI ;

Mikhailovsky, AA ;

McBranch, DW ;

Leatherdale, CA ;

Bawendi, MG .

SCIENCE, 2000, 287 (5455) :1011-1013

[9]

Larson DR, 2003, SCIENCE, V300, P1434, DOI 10.1126/science.1083780

[10] Towards non-blinking colloidal quantum dots [J].

Mahler, Benoit ;

Spinicelli, Piernicola ;

Buil, Stephanie ;

Quelin, Xavier ;

Hermier, Jean-Pierre ;

Dubertret, Benoit .

NATURE MATERIALS, 2008, 7 (08) :659-664

← 1 2 →