Publications by authors named "Rui Xuan Sun"
Article Synopsis
- The study focuses on a new type of quantum cascade laser designed to cover a wide range of mid-wave infrared absorption spectra, specifically targeting the λ ∼ 8.9 µm region, which is important for molecular analysis.
- This laser structure features high output power capabilities, achieving a maximum pulsed optical power of 4 W and a continuous wave power of 1.2 W at room temperature, demonstrating significant efficiency with a wall-plug efficiency of 11.7%.
- It offers an impressive tuning range, allowing adjustments from 7.71 µm to 9.15 µm in pulsed mode, and from 8 µm to 8.9 µ
A second-order distributed feedback interband cascade laser emitting at 3.25 µm was designed, grown, and fabricated. By coherent epitaxy of a GaSb cap layer instead of the conventional thin InAs cap on top of the laser structure, a high-quality surface grating was made of GaSb and gold.
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