61 citations · 208 across the 12 of their papers we have counts for
9 papers · 1 filter
High-Q Magneto-Optical Microdisk Resonators Based on Monocrystalline Bismuth-substituted Yttrium Iron Garnets
Takeru Yambe, Kota Taniguchi, Tatsuya Kitai +7
Microresonators based on diverse material platforms have driven the progress of integrated photonics by enhancing light-matter interactions in compact volumes. Extending this strat…
Quantitative cavity-enhanced photothermal dynamics in TMDC-integrated ultrahigh-Q microcavities
Hidetoshi Kanzawa, Ryo Sugano, Hajime Kumazaki +4
We investigate photothermal effects in monolayer transition metal dichalcogenides (TMDCs) integrated with an ultrahigh-Q silica microcavity. Launching a continuous-wave laser into…
Systematic dispersion engineering of crystalline microresonators for broadband and coherent frequency comb generation
Liu Yang, Ryomei Takabayashi, Hiroki Moriguchi +9
Ultraprecision machining offers a powerful route to dispersion control in crystalline microresonators, allowing the design of waveguide geometries for tailoring the spectrum of mic…
Centi-combs: Low-noise sub-GHz repetition-rate soliton frequency combs from crystalline resonators
Tatsuki Murakami, Keisuke Ogawa, Hajime Kumazaki +1
We demonstrate low-noise Kerr soliton frequency combs with repetition rates below 1~GHz in ultrahigh-Q crystalline magnesium fluoride resonators. Single soliton states with repetit…
Record-high-Q AMTIR-1 microresonators for mid- to long-wave infrared nonlinear photonics
Liu Yang, Ryo Sugano, Ryomei Takabayashi +6
AMTIR-1 chalcogenide glass has shown its potential for use in thermal imaging systems owing to its low refractive index, thermal resistance and high transparency across the infrare…
Architecture for coherent dual-comb spectroscopy and low-noise photonic microwave generation using mechanically actuated soliton microcombs
Tatsuki Murakami, Koshiro Wada, Soma Kogure +8
Dissipative Kerr soliton microcombs have inspired various intriguing applications such as spectroscopy, ranging, telecommunication, and high purity microwave generation. Mechanical…
Mechanically actuated Kerr soliton microcombs
Shun Fujii, Koshiro Wada, Soma Kogure +1
Mode-locked ultrashort pulse sources with a repetition rate of up to several tens of gigahertz greatly facilitate versatile photonic applications such as frequency synthesis, metro…
Versatile tuning of Kerr soliton microcombs in crystalline microresonators
Shun Fujii, Koshiro Wada, Ryo Sugano +4
Microresonator-based optical frequency combs emitted from high-quality-factor microresonators, also known as microcombs, have opened up new horizons to areas of optical frequency c…
Coupling of a whispering gallery mode to a silicon chip with photonic crystal
Yuyang Zhuang, Hajime Kumazaki, Shun Fujii +5
We demonstrate the efficient coupling (99.5%) of a silica whispering gallery mode microresonator directly with a silicon chip by using a silicon photonic crystal waveguide as a cou…