Emission properties of single deep confinement potential QD-cavity system under incoherent excitation

Huan Guan; Peijun Yao; Wenhai Yu; Pei Wang; Hai Ming

doi:10.1117/12.999647

27 November 2012 Emission properties of single deep confinement potential QD-cavity system under incoherent excitation

Huan Guan, Peijun Yao, Wenhai Yu, Pei Wang, Hai Ming

Proceedings Volume 8555, Optoelectronic Devices and Integration IV; 85550E (2012) https://doi.org/10.1117/12.999647
Event: Photonics Asia, 2012, Beijing, China

Abstract

Single quantum dot-cavity system with a deep confinement potential quantum dot is detailedly investigated, with both s- and p-exciton incoherent pump. Through gradually increasing pump rate (about 10^-4=ps ∼ 12=ps), the mean photon number shows a linear-dependence on pump power, the photon probability distribution, characterized by g⁽²⁾(0), transforms from antibunching to bunching through Poisson, and the spectra go from the doublet to a singlet, the linewidth shows clear reduction in the lasing region. If we increase pump rate further, the mean photon number decreases monotonically to zero, g(2)(0) reaches its maximum value 2, and all the electrons stack at upper lasing level, indicating thermal light generation. The results show, the deep QD-cavity system under s- and p-exciton pump can generate laser although it is not an ideal coherent light, and with only p-exciton pump considered, in spite of the coherent light generated, this pump method is unreasonable to simulate the experimental conditions for the negligible energy spacing between s-exciton and p-exciton.

Citation Download Citation

Huan Guan, Peijun Yao, Wenhai Yu, Pei Wang, and Hai Ming "Emission properties of single deep confinement potential QD-cavity system under incoherent excitation", Proc. SPIE 8555, Optoelectronic Devices and Integration IV, 85550E (27 November 2012); https://doi.org/10.1117/12.999647

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available