105 citations · 259 across the 12 of their papers we have counts for
12 papers
Nonlinear Photoelasticity to Explicate Acoustic Dephasing Dynamics
S. Lee, H. Jeong, H. Lee +5
Detection and controlling of acoustic (AC) phonon phase have been strenuous tasks although such capability is crucial for further manipulating thermal properties. Here, we present…
Phase manipulation of terahertz waves by work function engineering in metal-graphite structures
Muhammad Irfan, Soo Kyung Lee, Jong-Hyuk Yim +2
We manipulate the transient terahertz (THz) waves emitted from metal-graphite interfaces, where potential barriers were formed because of work function differences. To adaptively c…
Temperature Dependent Mean Free Path Spectra of Thermal Phonons Along the c-axis of Graphite
Hang Zhang, Xiangwen Chen, Young-Dahl Jho +1
Heat conduction in graphite has been studied for decades because of its exceptionally large thermal anisotropy. While the bulk thermal conductivities along the in-plane and cross-p…
Transverse Acoustic Phonon Transistor Based on Asymmetric Potential Distribution
H. Jeong, Y. D. Jho, C. J. Stanton
We experimentally demonstrate a transverse acoustic (TA) phonon transistor. Phonons are coherently initiated by femtosecond photocarrier screening on potential gradients. Although…
Directional terahertz emission from diffusion-engineered InAs structures
Jong-Hyuk Yim, Hoonil Jeong, Jin-Dong Song +1
We have designed and fabricated a new type of terahertz (THz) emitter that radiates THz waves along the surface-normal direction because of the lateral distributions of the transie…
Nexus between directionality of THz waves and structural parameters in groove-patterned InAs
Jong-Hyuk Yim, Kyunggu Min, Hoonil Jeong +2
We have performed terahertz (THz)-time domain spectroscopy in various geometries, for characterizing the directivity of THz waves emitted from groove-patterned InAs structures. Fir…