18 citations · 21 across the 5 of their papers we have counts for
5 papers
Transient Pauli blocking in a InN film as a mechanism for broadband ultrafast optical switching
Junjun Jia, Minseok Kim, Yuzo Shigesato +5
The transient Pauli blocking effect offers a promising route for achieving ultrafast optical switching in semiconductors, enabling a rapid switching from an initially opaque state…
Organic metallic epsilon-near-zero materials with large ultrafast optical nonlinearity
Qili Hu, Xinlan Yu, Hongqi Liu +7
Epsilon-near-zero (ENZ) materials have shown significant potential for nonlinear optical applications due to their ultrafast hot carriers and consequent optical nonlinearity enhanc…
Electromechanical coupling in Yb-substituted III-V nitride alloys
Junjun Jia, Naoya Iwata, Masashi Suzuki +1
Group-III nitride alloys are currently used in various microwave communication applications because of the giant enhancement in electromechanical coupling after alloying with rocks…
Ultrafast dynamics of electronic structure in InN thin film
Junjun Jia, Takashi Yagi, Toshiki Makimoto
Simultaneous measurements of transient transmission and reflectivity were performed in the unintentionally doped InN film to reveal ultrafast optical bleaching and its recovery beh…
Origin of Enhanced Electromechanical Coupling in (Yb,Al)N Nitride Alloys
Junjun Jia, Takahiko Yanagitani
Our experiments demonstrate that alloying the cubic-phase YbN into the wurtzite-phase AlN results in clear mechanical softening and enhanced electromechanical coupling of AlN. Firs…