Nanowerk December 21, 2022 Phosphor plates combined with nanoantenna, enable spatial and spectral control over luminescence. While the emission enhancement in a specific direction has been reported in nanoantenna studies, the evaluation of the total distribution of radiation as well as the conversion efficiency is largely missing. An international team of researchers (Japan, China) developed nanoantenna phosphors consist of a hexagonal array of titanium dioxide (TiO2) nanoparticles, fabricated on a phosphor plate of yttrium aluminum garnet doped with Ce3+ (YAG:Ce). They visualized the distribution of photoluminescence from the nanoantenna phosphor into forward, backward, and side directions by using an integrating […]
Tag Archives: Antenna
Designing next-generation optical antennas
Phys.org March 13, 2019 A team of researchers in the US (University of Notre Dame, UT Austin) designed and built optical antennas on an Epsilon-Near-Zero Material (ENZ) material to demonstrate a multimode, nearly monochromatic antenna. They are currently working to incorporate the optical antennas into semiconductor devices in order to improve the interaction between light and semiconductor materials. The technique has potential applications in sensing, imaging, infrared optoelectronics, and thermal emission control…read more. TECHNICAL ARTICLE