Nanoparticles, particles with sizes between 1 and 100 nm are omnipresent in several fields ranging from high technology industries to health care and consumer goods. Biological nanoparticles include viruses, exosomes and proteins. In many applications such as health care, it is essential to detect the presence of certain nanoparticles. Moreover, it is often of high importance to measure their sizes and concentrations. Since these particles are smaller than the wavelength of light, their label-free detection...

IEEE Robotics and Automation Letters, 4 (4)

Proceedings of the 2017 Conference and Exhibition on Design, Automation and Test in Europe (DATE)

Room temperature surface emission is realized on a large area (1.5 mm × 1.5 mm) photonic crystal quantum cascade laser (PhC-QCL) driven under pulsed mode, at the wavelength around 8.75 μm. By introducing in-plane asymmetry to the pillar shape and optimizing the current injection with a grid-like window contact, the maximum peak power of the PhC-QCL is up to 5 W. The surface emitting beam has a crossing shape with 10° divergence.

Proceedings of the 19th International Workshop on Software and Compilers for Embedded Systems