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Liu X, Kongsuwan N, Li X, Zhao D, Wu Z, Hess O, Zhang X. Tailoring the Third-Order Nonlinear Optical Property of a Hybrid Semiconductor Quantum Dot-Metal Nanoparticle: From Saturable to Fano-Enhanced Absorption. J Phys Chem Lett 2019; 10:7594-7602. [PMID: 31769991 DOI: 10.1021/acs.jpclett.9b02627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Semiconductor-metal hybrid nanostructures present an exotic class of nonlinear optical materials due to their potential optoelectronic applications. However, most studies to date focus on their total optical responses instead of contributions from individual nonlinear orders. In this Letter, we present a theoretical study on the third-order nonlinear optical absorption of a hybrid colloidal semiconductor quantum dot (SQD)-metal nanoparticle (MNP) system. We develop a novel analytic treatment based on the nonlinear density matrix equation and derive a closed-form expression for the optical susceptibility. Our study identifies the parameter space that governs the system's optical transition from being a saturable absorber to a Fano-enhanced absorber. We attribute this transition to the plasmon-mediated self-interaction of the SQD. The findings provide a valuable guideline for optimized designs of functional nanophotonic devices based on SQD-MNP hybrid structures.
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Affiliation(s)
- Xiaona Liu
- School of Physical Science and Technology , Southwest University , Chongqing 400715 , P. R. China
- State Key Laboratory of Superlattices and Microstructures , Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083 , P. R. China
- The Blackett Laboratory , Imperial College London , Prince Consort Road , London SW7 2AZ , United Kingdom
| | - Nuttawut Kongsuwan
- The Blackett Laboratory , Imperial College London , Prince Consort Road , London SW7 2AZ , United Kingdom
| | - Xiaoguang Li
- Institute for Advanced Study , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Dongxing Zhao
- School of Physical Science and Technology , Southwest University , Chongqing 400715 , P. R. China
| | - Zhengmao Wu
- School of Physical Science and Technology , Southwest University , Chongqing 400715 , P. R. China
| | - Ortwin Hess
- The Blackett Laboratory , Imperial College London , Prince Consort Road , London SW7 2AZ , United Kingdom
| | - Xinhui Zhang
- State Key Laboratory of Superlattices and Microstructures , Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083 , P. R. China
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Deng H, Ray PC, Ghann WE, Uddin J, Samokhvalov A, Yu H. Distance-dependent Fluorescence Quenching on a Silver Nanoparticle Surface. CHEM LETT 2019. [DOI: 10.1246/cl.190684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hua Deng
- Department of Chemistry, Morgan State University, Baltimore, MD, USA
| | - Paresh C Ray
- Department of Chemistry, Physics, and Atmospheric Sciences, Jackson State University, Jackson, MS, USA
| | - William E. Ghann
- Department of Natural Sciences, Coppin State University, Baltimore, MD, USA
| | - Jamal Uddin
- Department of Natural Sciences, Coppin State University, Baltimore, MD, USA
| | | | - Hongtao Yu
- Department of Chemistry, Morgan State University, Baltimore, MD, USA
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Feng Y, Liu L, Hu S, Zou P, Zhang J, Huang C, Wang Y, Wang S, Zhang X. Efficient fluorescence energy transfer system between fluorescein isothiocyanate and CdTe quantum dots for the detection of silver ions. LUMINESCENCE 2015; 31:356-363. [DOI: 10.1002/bio.2967] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 05/06/2015] [Accepted: 06/09/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Yueshu Feng
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Liwei Liu
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Siyi Hu
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Peng Zou
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Jiaqi Zhang
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Chen Huang
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Yue Wang
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
| | - Sihan Wang
- School of Science, Changchun University of Science and Technology; Changchun People's Republic of China
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