Project supported by the National Key Research and Development Program of China(Grant No.2019YFA0210000);the National Natural Science Foundation of China(Grant No.12175232)。
Doping of rare earth elements into Bi_(4)Ti_(3)O_(12) can significantly enhance the upconversion photoluminescence(UCPL)properties,but its structure-property relationship is still unclear.In this work,Er-doped bismuth...
financially supported by the Science Foundation of Donghai Laboratory(No.DH-2022KF0314);the Open Fund of Hubei Longzhong Laboratory(No.2022KF07);the National Natural Science Foundation of China(Nos.U2002213 and 21975001);the Open Foundation of State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures(No.2022GXYSOF10);the Support Program of Excellent Young Talents in Anhui Provincial Colleges and Universities(No.gxyqZD2022034);the Double First Class University Plan(No.C176220100042)。
Hydrogen production via electrochemical water splitting is a promising and green technology.As one of the most representative transition metal sulfides layered materials,Molybdenum disulfide(MoS_(2))has immense potent...
supported by the National Natural Science Foundation of China(Grant No.61974076);the China National Key R&D Program(Grant No.2022YFC2807104).
Based on its band alignment,p-type nickel oxide(NiO_(x))is an excellent candidate material for hole transport layers in crystalline silicon heterojunction solar cells,as it has a smallΔEV and largeΔEC with crystalli...
supported by the National Natural Science Foundation of China(Grant Nos.62105240,62075159,61975146,and 62275190);Shandong Province Key R&D Program(Nos.2020CXGC010104 and 2021CXGC010202);Seed Foundation of Tianjin University(No.2023XPD-0020).
976 nm+1976 nm dual-wavelength pumped Er-doped ZBLAN fiber lasers are generally accepted as the preferred solution for achieving 3.5μm lasing.However,the 2μm band excited state absorption from the upper lasing level...
National Key Scientific Instrument and Equipment Development Projects of China(51927804);National Natural Science Foundation of China(61905193)。
Frequency detuning of mode-locked fiber lasers displays many remarkable nonlinear dynamical behaviors.Here we report for the first time the evolution of pulses from mode-locking through period pulsation to Q-switched ...
the National Key Research and Development Program of China(Grant No.2016YFF0200204)。
Femtosecond optical frequency combs correlate the microwave and optical frequencies accurately and coherently.Therefore,any optical frequency in visible to near-infrared region can be directly traced to a microwave fr...
This work was supported by the National Natural Science Foundation of China(No.52072075,21973012);the Natural Science Foundation of Fujian Province(No.2018J01753 and 2019J01228).
External stimuli induced effective regulations of luminescent material are of significant interest in the development of smart optical devices.Here,by simply doping with Er^(3+) in the 0.94Bi_(0.5)Na_(0.5)TiO_(3)-0.06...
This work was supported by the National Natural Science Foundation of China(No.61904043);the Natural Science Foundation of Zhejiang Province(No.LQ19A040009).
Surface charge transfer doping has been widely utilized to tune the electronic and optical properties of semiconductor photodetectors based on low-dimensional materials.Although many studies have been conducted on the...
This work was supported by the National Key R&D Program of China(No.2020YFB1805900);National Natural Science Foundation of China(NSFC)(No.62005297);Shanghai Sailing Program(No.20YF1455300);Shanghai Science International Cooperation Project(No.18590712900).
In this work, a heavily Er-doped fiber with an 8 μm core diameter and a numerical aperture of 0.13 was prepared by the modified chemical vapor deposition(MCVD) technique combined with the sol-gel method. The backgrou...
supported by the National Key R&D Program of China(No.2018YFB0407100)
We demonstrate here an environmentally stable and extremely compactable Er-doped fiber laser system capable of delivering sub-100-fs temporal duration and tens of nanojoules at a repetition rate of 10 MHz.This laser s...