A quantum cascade laser is configured with a semiconductor substrate, and an active layer
provided on a first surface of the substrate and having a multistage lamination of unit …

A quantum cascade laser is configured with a semiconductor substrate, and an active layer
provided on a first surface of the substrate and having a cascade structure in the form of a …

The laser module includes a QCL element, a MEMS dif fraction grating, a lens holder for
holding a lens disposed between the QCL element and the MEMS diffraction grat ing, and a …

A quantum cascade laser device includes a semiconductor substrate, an active layer
provided on the semiconductor substrate, and an upper clad layer provided on a side of the …

A method for generating light emission is provided. The method includes providing a
transistor element including collector, emitter, and base regions, a quantum cascade region …

The present invention relates to a generation device and a generation method of terahertz
waves with orbital angular momentum. The generation device comprises a first laser and a …

A method of manufacturing a quantum cascade laser beam source (1) includes: preparing a
semiconductor stacked body (20); forming a pair of first excavated portions (41 and 42) and …