研究目的
To review the current progress of PCSELs, including the demonstration of large-area coherent oscillation, the control of beam patterns, the demonstration of beam steering, and the realization of watt-class and high-beam-quality operation.
研究成果
PCSELs have demonstrated significant advancements in large-area coherent oscillation, beam pattern control, beam steering, and high-power operation, achieving a brightness of about 300 MW cm?2 sr?1. These developments suggest that PCSELs could be applied in various fields such as material processing, optical sensing, and lighting.
研究不足
The review does not detail specific limitations of the PCSEL technology but mentions the challenges in achieving high-power operation and beam steering.
1：Experimental Design and Method Selection:
The review discusses the design and fabrication of PCSELs using photonic crystals to achieve large-area coherent oscillation, beam pattern control, beam steering, and high-power operation.
2：Sample Selection and Data Sources:
The review is based on previous research and demonstrations by the authors and other groups.
3：List of Experimental Equipment and Materials:
Includes electron-beam (EB) lithography and reactive-ion etching techniques for fabricating photonic-crystal patterns, and metal–organic vapor phase epitaxy (MOVPE) regrowth technique for high-power operation.
4：Experimental Procedures and Operational Workflow:
Describes the fabrication process of PCSELs, including the preparation of photonic-crystal patterns, wafer bonding, and crystalline regrowth.
5：Data Analysis Methods:
The review summarizes the results of various experiments demonstrating the capabilities of PCSELs.
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