In this paper,a tunable metamaterial absorber based on a Dirac semimetal is proposed.It consists of three different structures,from top to bottom,namely a double semicircular Dirac semimetal resonator,a silicon dioxid...
supported by the National Key R&D Program of China(No.2022YFB3605800);the National Natural Science Foundation of China(Nos.62105130,62075089,52372010,52422201,11654005,and 12234014);the Natural Science Foundation of Shandong Province(No.ZR2023ZD53);the Research Capability Elevation Program of Guangdong Province(No.2022ZDJS116);the National Science Foundation of Top Talent of SZTU(No.GDRC202302);the Innovation Program for Quantum Science and Technology(No.2021ZD0303200);the Shanghai Municipal Science and Technology Major Project(Nos.2019SHZDZX01,22DZ2229004).
The sintering trajectory of the Ho,Pr:Y2O3 ceramics could be effectively adjusted by sintering in a flowing oxygen atmosphere instead of vacuum.The final-stage grain growth was significantly suppressed by the use of o...
Supported by the National Key Research and Development Program of China(2021YFA0718803)。
An LD directly-pumped solid-state laser is considered to be one of the most promising mid-infrared light sources because of its simple principle,small size,and compact structure for the generation of mid-infrared(MIR)...
National Natural Science Foundation of China(61991430,12393830,12274404,62222408,62235016,62274014);Beijing Municipal Science&Technology Commission(Z221100002722018)。
The high-power quantum cascade laser(QCL)frequency comb capable of room temperature operation is of great interest to high-precision measurement and low-noise molecular spectroscopy.While a significant amount of resea...
supported by the National Key R&D Program of China (No.2022YFB2903102);the National Natural Science Foundation of China (Nos.12204141,62105087,62105088;12304476);the Key R&D Program of Anhui Province(No.202104a07020010);the Natural Science Foundation of Anhui Province (No.2208085QF214);the Fundamental Research Funds for the Central Universities (Nos.JZ2024HGTB0235,JZ2024HGTB0212,and JZ2024HGTB0202)。
The mid-infrared (MIR) pulsed laser,operating at around 2.8μm,holds great significance due to its strong water absorption and the characteristic fingerprint spectra it provides for essential molecules.Nevertheless,th...
supported by the National Natural Science Foundation of China(Grant No.61975055);the Natural Science Foundation of Hunan Province,China(Grant No.2023JJ30165);the Natural Science Foundation of Shandong Province,China(Grant No.ZR2022QF005);the Doctoral Fund of University of Heze(Grant No.XY22BS14).
The study of nonlinear optical responses in the mid-infrared(mid-IR)regime is essential for advancing ultrafast mid-IR laser applications.However,nonlinear optical effects under mid-IR excitation are rarely reported d...
National Natural Science Foundation of China(62035005,62175064,62235019);Shanghai Pilot Program for Basic Research(TQ20220104);Natural Science Foundation of Chongqing Municipality(CSTB2022NSCQMSX0451,CSTB2022TIAD-DEX0036,CSTB2023NSCQJQX0011);Shanghai Municipal Science and Technology Major Project(2019SHZDZX01);Fundamental Research Funds for the Central Universities。
Synchronously pumped optical parametric oscillators(OPOs)provide uniquely versatile platforms to generate ultrafast mid-infrared pulses within a spectral range beyond the access of conventional mode-locked lasers.Howe...
National Natural Science Foundation of China(62175080);National Key Research and Development Program of China(2022YFB2803600)。
The four-wave mixing(FWM)effect offers promise to generate or amplify light at wavelengths where achieving substantial gain is challenging,particularly within the mid-infrared(MIR)spectral range.Here,based on the comm...
supported by the National Key Research and Development Program of China(No.2023YFB3507404);the National Natural Science Foundation of China(Nos.62005161,62075126 and 62325506);the Innovation Program of Shanghai Municipal Education Commission(No.2023ZKZD19);the Fundamental Research Funds for the Central Universities。
We demonstrate the sub-100 fs pulse generation from a dispersion-managed mode-locked Er:ZBLAN fiber laser at2.8μm.Both numerical simulation and experiment demonstrate that stretched-pulse and dissipative soliton mode...
partly supported by the National Natural Science Foundation of China(NSFC)(62175179,62161160335);Natural Science Foundation of Tianjin Municipality,China(23JCJQJC00250);Natural Science Foundation of Guangdong Province,China(2022B1515130002,2023A1515011189);Japan Society for the Promotion of Science(JSPS)(JP18K13798).
Leveraging the low linear and nonlinear absorption loss of silicon at mid-infrared(mid-IR)wavelengths,silicon photonic integrated circuits(PICs)have attracted significant attention for mid-IR applications including op...