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USCv2A, USCv3A, USCv4A, USCv5A, USCv6A, USCv7A, USCv8E, USCv9M, and DT6umA are ultra-strong coupling quantum cascade laser designs lasing at ∼4 to 6 μm, similar to the USCv1A design as in Ref. 13.

22.

ZD9TumM, ZVT9umM, and ZDT10umM are 8–10 μm quantum cascade laser designs similar to the Z8umP design as in Ref. 18.

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BG9umv2A and BG9umv3A are broad gain quantum cascade laser designs similar to the designs in Refs. 16 and 17 lasing at ∼9 μm.

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