Strong two-photon absorption of Mn-doped CsPbCl3 perovskite nanocrystals

2017 ◽  
Vol 111 (21) ◽  
pp. 211105 ◽  
Author(s):  
Tingchao He ◽  
Junzi Li ◽  
Can Ren ◽  
Shuyu Xiao ◽  
Yiwen Li ◽  
...  
Keyword(s):  
Photon Absorption ◽  
Perovskite Nanocrystals ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Mn Doped

Two-Photon Absorption Properties of Mn-Doped ZnS Quantum Dots

2006 ◽  
Vol 23 (11) ◽  
pp. 3097-3100 ◽  
Author(s):  
Zheng Jia-Jin ◽  
Zhang Gui-Lan ◽  
Guo Yang-Xue ◽  
Wang Xiao-Yan ◽  
Chen Wen-Ju ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photon Absorption ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Mn Doped

Defect-assisted saturable absorption characteristics in Mn doped ZnO nano-rods

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88767-88772 ◽  
Author(s):  
Avanendra Singh ◽  
Samir Kumar ◽  
Ritwick Das ◽  
Pratap K. Sahoo
Keyword(s):  
Doping Level ◽  
Zno Nanorods ◽  
Photon Absorption ◽  
Saturable Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Nano Rods ◽  
Doped Zno ◽  
Mn Doped ◽  
Absorption Characteristics

After reaching a threshold doping level of Mn, it is possible to alter from two photon absorption to saturable absorption in ZnO nanorods.

scholarly journals Giant Third-Order Nonlinear Response of Mixed Perovskite Nanocrystals

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 389
Author(s):  
Aya M. Abu Baker ◽  
Ganjaboy S. Boltaev ◽  
Mazhar Iqbal ◽  
Mikhail Pylnev ◽  
Nasser M. Hamdan ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Laser Pulses ◽  
Photon Absorption ◽  
Third Order ◽  
Central Wavelength ◽  
Third Harmonic ◽  
Perovskite Nanocrystals ◽  
Two Photon Absorption ◽  
Two Photon ◽  
The Third

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.

Second order interference in two photon absorption

1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT
Keyword(s):  
Second Order ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Studies of Two Photon Absorption in Heavy Metal Oxide Based Glasses

2010 ◽  
Vol 25 (3) ◽  
pp. 289-292 ◽  
Author(s):  
Fei-Fei CHEN ◽  
Tie-Feng XU ◽  
Shi-Xun DAI ◽  
Qiu-Hua NIE ◽  
Xiang SHEN ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Oxide ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon
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