Two-Photon Absorption-Based Upconverted Circularly Polarized Luminescence Generated in Chiral Perovskite Nanocrystals

2019 ◽  
Vol 10 (12) ◽  
pp. 3290-3295 ◽  
Author(s):  
Wenjie Chen ◽  
Shuai Zhang ◽  
Minghao Zhou ◽  
Tonghan Zhao ◽  
Xujin Qin ◽  
...  
2018 ◽  
Vol 9 (16) ◽  
pp. 3917-3924 ◽  
Author(s):  
Carlos M. Cruz ◽  
Irene R. Márquez ◽  
Inês F. A. Mariz ◽  
Victor Blanco ◽  
Carlos Sánchez-Sánchez ◽  
...  

Including defects in a ribbon-shaped nanographene leads to a new combination of optical properties: TPA-based upconversion and CPL.


2017 ◽  
Vol 111 (21) ◽  
pp. 211105 ◽  
Author(s):  
Tingchao He ◽  
Junzi Li ◽  
Can Ren ◽  
Shuyu Xiao ◽  
Yiwen Li ◽  
...  

2018 ◽  
Vol 30 (12) ◽  
pp. 1705011 ◽  
Author(s):  
Yonghong Shi ◽  
Pengfei Duan ◽  
Shengwei Huo ◽  
Yuangang Li ◽  
Minghua Liu

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 389
Author(s):  
Aya M. Abu Baker ◽  
Ganjaboy S. Boltaev ◽  
Mazhar Iqbal ◽  
Mikhail Pylnev ◽  
Nasser M. Hamdan ◽  
...  

Mixed (FAPbI3)0.92(MAPbBr3)0.08 perovskite thin films exhibit strong nonlinear optical responses, rendering them promising candidates for applications in photonics and optical communications. In this work, we present a systematic study on the ultrafast third-order nonlinear optical processes in mixed perovskite nanocrystals (NCs) by exploring the generation of third harmonic radiation and giant two-photon absorption-based photoluminescence (PL) when excited by femtosecond laser pulses of a 1030 nm central wavelength. A comparative analysis of the coherent third harmonic generation in the thin-film-containing perovskite nanocrystals has shown a 40× enhancement of the third harmonic signal compared to the signal generated in the pure quartz substrate. The cubic dependence of the third-nonlinear optical response of the (FAPbI3)0.92(MAPbBr3)0.08 perovskites on the intensity of the driving radiation was identified using broadband 38 femtosecond driving pulses. The positive nonlinear refractive index (γ = +1.4 × 10−12 cm2·W−1) is found to play an important role in improving the phase-matching conditions of the interacting pulses by generating a strong third order harmonic. The giant two-photon absorption (TPA)-assisted PL peak was monitored and a blue shift of the PL was obtained in the higher intensity range of the laser pulses, with the absorption coefficient β estimated to be~+7.0 cm·MW−1 at a 1030 nm laser wavelength.


ACS Nano ◽  
2020 ◽  
Vol 14 (7) ◽  
pp. 8816-8825
Author(s):  
Young-Hoon Kim ◽  
Yaxin Zhai ◽  
E. Ashley Gaulding ◽  
Severin N. Habisreutinger ◽  
Taylor Moot ◽  
...  

2019 ◽  
Vol 55 (15) ◽  
pp. 2210-2213 ◽  
Author(s):  
Wen-Ting Deng ◽  
Hang Qu ◽  
Zhe-Yu Huang ◽  
Lin Shi ◽  
Zhi-Yong Tang ◽  
...  

A pair of novel chiral one-dimensional compounds with the general formula [Cd(NO3)2L2]·THF (where L is R- or S-2,2′-bis(methoxymethoxy)-6,6′-bis(4-pyridyl)-1,1′-binaphthyl) for the first time show circularly polarized luminescence, two-photon excited fluorescence, and second harmonic generation activity.


1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT

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