20-μm-diameter WGM resonators that include a terfluorene emission layer and a 10-nm-thick layer of Al or Ag were investigated. The plasmon-quenching effect on amplified spontaneous emission was effectively suppressed by the resonator structure.
Takahito Yokota   Kensuke Kanda   Takayuki Fujita   Kazusuke Maenaka   
Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS) 2023-January 709-711 2023年
This paper reports on the improvement of the output power of piezoelectric energy harvesters (PEHs). A tapered thickness structure of a cantilever beam for uniform stress, tungsten proof mass, thick piezoelectric film, and series connection of the...
ELECTRONICS AND COMMUNICATIONS IN JAPAN 101(4) 63-68 2018年4月 [査読有り]
In this study, we have fabricated membranes which are composed of two-and four-layer Pb(Zr, Ti)O-3 thin films with internal electrodes by using sputtering depositions. Electrical and driving characteristics as ultrasonic transducers of these membr...