研究目的
Investigating the use of GaN/AlN/GaN structures as high-intensity pyroelectric laser sensors for measuring the parameters of high-intensity laser pulses in laser fusion facilities.
研究成果
The study concludes that transparent Al2O3 /GaN/AlN/GaN structures can be effectively used as pyrometric sensors for measuring high-intensity laser pulses in laser fusion facilities. The optimal structure configuration was established to minimize the negative effects of laser impact on the pyroelectric coefficient stability.
研究不足
The study is focused on the use of GaN/AlN/GaN structures for high-intensity laser pulse measurement, with specific attention to minimizing local maxima of absorbed energy density distributions. The limitations include the need for further optimization of the structure configuration and the potential negative effects of laser impact on the pyroelectric coefficient stability.
1：Experimental Design and Method Selection:
The study proposes the use of transparent Al2O3 /GaN/AlN/GaN structures as pyrometric sensors. The methodology involves analyzing the peculiarities of employing such sensors in laser fusion facilities and obtaining post-pulse distributions of the absorbed energy density for various parameters of GaN layers.
2：Sample Selection and Data Sources:
The study focuses on GaN/AlN/GaN structures with varying donor concentrations and thicknesses under the condition of invariance of the total absorbed energy.
3：List of Experimental Equipment and Materials:
The materials include transparent Al2O3 /GaN/AlN/GaN structures. The equipment specifics are not detailed in the abstract.
4：Experimental Procedures and Operational Workflow:
The procedure involves varying the ratio of donor concentration and the ratio of their thicknesses to minimize local maxima of the absorbed energy density distributions.
5：Data Analysis Methods:
The analysis involves establishing the optimal structure configuration to reduce the possible negative effect of laser impact on the pyroelectric coefficient stability.
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