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6 papers · 2 filters
Stepped-Frequency THz-wave Signal Generation From a Kerr Microresonator Soliton Comb
Omnia Nawwar, Kaoru Minoshima, Naoya Kuse
Optically generated terahertz (THz) oscillators have garnered considerable attention in recent years due to their potential for wide tunability and low phase noise. Here, for the f…
Solving multi-armed bandit problems using a chaotic microresonator comb
Jonathan Cuevas, Ryugo Iwami, Atsushi Uchida +2
The Multi-Armed Bandit (MAB) problem, foundational to reinforcement learning-based decision-making, addresses the challenge of maximizing rewards amidst multiple uncertain choices.…
Jones-matrix dual-comb spectroscopic polarimetry
Hidenori Koresawa, Hiroki Kitahama, Shogo Tanimura +6
Spectroscopic polarimetry (SP) is a powerful tool for evaluation of thin film, optical materials, and biological samples because it can provide both polarimetric and spectroscopic…
Carrier conversion from terahertz wave to dual-wavelength near-infrared light injection-locking to optical comb using asynchronous nonpolarimetric electro-optic downconversion with electro-optic polymer modulator
Yudai Matsumura, Yu Tokizane, Eiji Hase +12
THz waves are promising wireless carriers for next-generation wireless communications, where a seamless connection from wireless to optical communication is required. In this study…
Terahertz wireless communication at 560-GHz band using Kerr micro-resonator soliton comb
Yu Tokizane, Shota Okada, Kenji Nishimoto +9
Terahertz (THz) waves have attracted attention as carrier waves for next-generation wireless communications (6G). Electronic THz emitters are widely used in current mobile communic…
Nanometer-precision surface metrology of millimeter-size stepped objects using full-cascade-linked synthetic-wavelength digital holography using a line-by-line full-mode-extracted optical frequency comb
Eiji Hase, Yu Tokizane, Kazuki Sadahiro +3
Digital holography (DH) is a powerful tool for surface profilometry of objects with sub-wavelength precision. In this article, we demonstrate full-cascade-linked synthetic-waveleng…