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physics.optics2026
Oscillator-driven broadband femtosecond transient microspectroscopy with supercontinuum probes generated in a photonic crystal fiber
Rikuto Fukuda, Kyosuke Kishihata, Ryo Man-nami +4
We present an oscillator-driven femtosecond transient microspectroscopy system based on supercontinuum generation in a photonic crystal fiber (PCF). The system operates at 80 MHz w…
physics.optics2026
Ultrafast Nano-Imaging and Optical Control of Hyperbolic Phonon Polaritons at hBN/WS Heterojunctions
Kazuki Kamada, Keisuke Shinokita, Fanyu Zeng +7
Manipulating nanoscale light-matter interactions on ultrafast time scales is indispensable for future polaritonic devices. Hyperbolic phonon polaritons (HPhPs) in van der Waals mat…