研究目的
Investigating the nonlinear optical character of γ‐graphyne and its application as a saturable absorber in Q‐switched solid‐state lasers across a wide wavelength range from visible to mid‐infrared.
研究成果
The γ‐graphyne SA demonstrated high stability and excellent carrier mobility, making it a promising broadband optical modulator for pulse lasers. The results indicate the potential for γ‐graphyne in applications beyond the present energy field.
研究不足
The pulse trains became unstable when the absorbed pump power exceeded specified maximum power. The mode‐locked laser performance requires optimization of the laser cavity designing and increased pump power intensity.
1：Experimental Design and Method Selection:
The γ‐graphyne SA was fabricated using a mechanochemistry method and liquid‐phase exfoliation method. The nonlinear optical property was characterized using a femtosecond Ti: sapphire laser.
2：Sample Selection and Data Sources:
γ‐graphyne powder was synthesized and dispersed in PMMA toluene. The resultant dispersions were centrifuged to remove unexfoliated or aggregated powders.
3：List of Experimental Equipment and Materials:
Femtosecond Ti: sapphire laser, VIS‐IR spectrometer, TEM for morphology analysis, Raman spectrometer for chemical composition analysis.
4：Experimental Procedures and Operational Workflow:
The γ‐graphyne sample was transferred onto a sapphire substrate using spin‐coating method. The linear and nonlinear optical properties were measured.
5：Data Analysis Methods:
The nonlinear optical absorption was presented by a simple saturation mode to determine modulation depth, saturation intensity, and non‐saturable absorbance.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
