Room-temperature strong coupling between dipolar plasmon resonance in single gold nanorod and two-dimensional excitons in monolayer WSe<sub>2</sub><xref rid="cpb_27_9_096101fn1" ref-type="fn">*</xref><fn id="cpb_27_9_096101fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 51290271 and 11474364), the National Basic Research Program of China (Grant Nos. 2013CB933601 and 2013YQ12034506), the Natural Science Funds for Distinguished Young Scholars of Guangdong Province, China (Grant No. 2014A030306017), the Pearl River S & T Nova Program of Guangzhou, China (Grant No. 201610010084), and the Guangdong Special Support Program, China.</p></fn>

Room-temperature strong coupling between dipolar plasmon resonance in single gold nanorod and two-dimensional excitons in monolayer WSe₂**

Project supported by the National Natural Science Foundation of China (Grant Nos. 51290271 and 11474364), the National Basic Research Program of China (Grant Nos. 2013CB933601 and 2013YQ12034506), the Natural Science Funds for Distinguished Young Scholars of Guangdong Province, China (Grant No. 2014A030306017), the Pearl River S & T Nova Program of Guangzhou, China (Grant No. 201610010084), and the Guangdong Special Support Program, China.

Wen Jinxiu^{1, 4}, Wang Hao^{1, 3}, Chen Huanjun^{1, 2, †}, Deng Shaozhi^{1, 2, ‡}, Xu Ningsheng^{1, 2}

Gold nanorods with different LPM wavelengths. (a) Extinction spectra of the gold nanorod samples with different aspect ratios. The LPM wavelengths from left to right are 688 nm, 720 nm, 766 nm, and 833 nm, respectively. (b) TEM images of the gold nanorod samples corresponding to panel (a). The aspect ratios of the nanorods increase from left to right.