The discoveries of electricity and magnetism in the 19th century have fueled the development of western civilization. Now, we are facing a technological challenge in the field of photonics, which includes generation, transmission, sensing and modulation of light. It is anticipated that in the 21st century the flow of electrons in electronic devices will be substituted by photons and the electric microcircuits will be substituted by photonics. Our recent results in the field of photonics will be presented, that may lead to miniaturization of photonic circuits for optical systems.
B.04 Guest lecture
COBISS.SI-ID: 24502311The invention is a spherical source of laser light including one or more droplets of chiral liquid crystals, with the addition of an active laser medium. Due to the chirality, the liquid crystals adopts a helical structure with a periodic variation of the dielectric tensor. The droplet is illuminated, so that an excess of the stimulated light over its loss is gained. The modulation of the refractive index causes a Bragg reflection of the light and the helical liquid crystalline structure functions as a radial Bragg reflector, thus forming an optical Bragg microresonator.
F.33 Slovenian patent
COBISS.SI-ID: 24447015