Yoshiki Ichioka

TL;DR: Preliminary experimental results show that various digitized temporal bit signals can be generated by the variation of the power of an ultrashort analog input pulse of less than 1 ps.

TL;DR: The wavelength-multiplexing diffractive phase element (WMDPE) capable of generating independent spot patterns for different wavelengths is reported on and it is observed that the individual spot patterns are reconstructed for the design wavelengths correctly.

TL;DR: A one-step method, which is based on the effective medium theory, for the fabrication of a multilevel phase CGH, showed that the reconstructed wave field is in good agreement with that simulated by a computer, indicating the effectiveness of the proposed method.

TL;DR: This work describes and analyzes the proposed technique for ultrafast all-optical processors that can convert an input 2-D spatial object into a modulated ultrafast optical pulse sequence and can retrieve the original 2- D spatial image from the temporal signals transmitted through the optical fiber channel with ultrahigh bandwidth.

TL;DR: In this paper, a thin observation module by bound optics (TOMBO) is developed with compound-eye imaging and post digital processing, and several prototype systems have been constructed with a refractive microlens array and a complementary metal oxide semiconductor (CMOS) image sensor.