Zobrazeno 1 - 10
of 441
pro vyhledávání: '"Fabian, Rotermund"'
Autor:
Seong Cheol Lee, Soobong Park, Daewon Suk, Joonhyuk Hwang, Kiyoung Ko, Won Bae Cho, Duk-Yong Choi, Kwang-Hoon Ko, Fabian Rotermund, Hansuek Lee
Publikováno v:
APL Photonics, Vol 9, Iss 8, Pp 080802-080802-7 (2024)
The mid-infrared wavelength region is one of the most important spectral ranges for a variety of applications in monitoring and controlling molecules due to the presence of strong characteristic absorption modes of many molecules. Among various mid-i
Externí odkaz:
https://doaj.org/article/c7216703adf846a987d46eed6e7957b7
Autor:
Bong‐Rim Shin, Uros Puc, Yu‐Jin Park, Dong‐Joo Kim, Chae‐Won Lee, Woojin Yoon, Hoseop Yun, Chaeyoon Kim, Fabian Rotermund, Mojca Jazbinsek, O‐Pil Kwon
Publikováno v:
Advanced Science, Vol 10, Iss 34, Pp n/a-n/a (2023)
Abstract In the development of new organic crystals for nonlinear optical and terahertz (THz) applications, it is very challenging to achieve the essentially required non‐centrosymmetric molecular arrangement. Moreover, the resulting crystal struct
Externí odkaz:
https://doaj.org/article/a1a2320d3a9b4218aa708b051aee3ca9
Autor:
Ji-Ho Park, Won Tae Kim, Woonjae Won, Jun-Ho Kang, Soogil Lee, Byong-Guk Park, Byoung S. Ham, Younghun Jo, Fabian Rotermund, Kab-Jin Kim
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
In a ferrimagnet, there are two magnetic sublattices coupled antiferromagnetically. The dynamics of the two magnetic sublattices isn’t well understood, as the magnetic moments for each reside at different energy levels. Here, Park et al show that t
Externí odkaz:
https://doaj.org/article/b61e3529496d41bca05d665a3ee8ce69
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-11 (2022)
Topological insulators could be ideal materials for use in electronic devices but complications arising at the interface with metallic electrodes degrades performance values. Here, the authors propose VSe2 as an electrode material investigating the c
Externí odkaz:
https://doaj.org/article/6e53812701294133ac6669319b0f2bda
Publikováno v:
APL Materials, Vol 11, Iss 1, Pp 011101-011101-8 (2023)
For nonlinear optical materials to be applicable as efficient broadband terahertz (THz) wave generators, low absorption with wide transparency in the THz frequency range is highly important. In this study, we report efficient organic THz wave generat
Externí odkaz:
https://doaj.org/article/7eb85b88b0dd4e0c9c734bacf1bbaa5e
Autor:
In Hyung Baek, Hyun Woo Kim, Hyeon Sang Bark, Kyu-Ha Jang, Sunjeong Park, Junho Shin, Young Chan Kim, Mihye Kim, Key Young Oang, Kitae Lee, Fabian Rotermund, Nikolay A. Vinokurov, Young Uk Jeong
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
A travelling wave inside a metal slit can reveal its own waveform by probing deflecting motions of charged particles. Here, a real-time THz oscilloscope was demonstrated by utilizing the relativistic electrons and the subwavelength slit waveguide.
Externí odkaz:
https://doaj.org/article/2f142e755a0d4ca0b097145797f511af
Autor:
Ga‐Eun Yoon, Jin‐Hong Seok, Uros Puc, Bong‐Rim Shin, Woojin Yoon, Hoseop Yun, Dongwook Kim, In Cheol Yu, Fabian Rotermund, Mojca Jazbinsek, O‐Pil Kwon
Publikováno v:
Advanced Science, Vol 9, Iss 24, Pp n/a-n/a (2022)
Abstract Solid‐state molecular phonons play a crucial role in the performance of diverse photonic and optoelectronic devices. In this work, new organic terahertz (THz) generators based on a catechol group that acts as a phonon suppressing intermole
Externí odkaz:
https://doaj.org/article/b9c9d99284f64c9583e9b0c45a2c8a0f
Autor:
Seung-Jun Kim, Se-In Kim, Mojca Jazbinsek, Woojin Yoon, Hoseop Yun, Dongwook Kim, In Cheol Yu, Fabian Rotermund, O-Pil Kwon
Publikováno v:
Advanced Photonics Research, Vol 3, Iss 7, Pp n/a-n/a (2022)
A new class of highly efficient nonlinear optical organic salt crystals is reported. In nonlinear optics based on organic materials, it is well known that using two electron‐withdrawing groups (EWGs) onto cationic electron acceptors instead of conv
Externí odkaz:
https://doaj.org/article/f282ec3c826b4b7bbee47afeab0941db
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Non-resonant lasers have many advantages since the allow for a diverse set of architectures and gain media, but their application is limited due to their low directionality and efficiency. Here, the authors present a scattering cavity laser with a si
Externí odkaz:
https://doaj.org/article/557d260ba4714d239653226d41b0ad93
Autor:
Myeong‐Hoon Shin, Won Tae Kim, Se‐In Kim, Seung‐Jun Kim, In Cheol Yu, Sang‐Wook Kim, Mojca Jazbinsek, Woojin Yoon, Hoseop Yun, Fabian Rotermund, O‐Pil Kwon
Publikováno v:
Advanced Science, Vol 7, Iss 20, Pp n/a-n/a (2020)
Abstract New organic THz generators are designed herein by molecular engineering of the refractive index, phonon mode, and spatial asymmetry. These benzothiazolium crystals simultaneously satisfy the crucial requirements for efficient THz wave genera
Externí odkaz:
https://doaj.org/article/12bfb4256ff541a282ca2e6207dda95d