Search Results - "Na, Yongjin"

Ultrafast, sub-nanometre-precision and multifunctional time-of-flight detection by Na, Yongjin, Jeon, Chan-Gi, Ahn, Changmin, Hyun, Minji, Kwon, Dohyeon, Shin, Junho, Kim, Jungwon

“…Displacement measurement is a fundamental functionality in modern science and technology. Although there has been remarkable progress in the precision of such…”
Get full text

Attosecond electronic timing with rising edges of photocurrent pulses by Hyun, Minji, Ahn, Changmin, Na, Yongjin, Chung, Hayun, Kim, Jungwon

“…There has been remarkable progress in generating ultralow-noise microwaves from optical frequency combs in the last decade. While a combination of techniques…”
Get full text

785-nm Frequency Comb-Based Time-of-Flight Detection for 3D Surface Profilometry of Silicon Devices by Kwak, Hyunsoo, Ahn, Changmin, Na, Yongjin, Bae, Jinho, Kim, Jungwon

“…Three-dimensional integrated circuits (3D-ICs) are becoming more significant in portable devices, autonomous vehicles, and data centers. As the demand for…”
Get full text

Massively parallel electro-optic sampling of space-encoded optical pulses for ultrafast multi-dimensional imaging by Na, Yongjin, Kwak, Hyunsoo, Ahn, Changmin, Lee, Seung Eon, Lee, Woojin, Kang, Chu-Shik, Lee, Jungchul, Suh, Junho, Yoo, Hongki, Kim, Jungwon

“…High-speed and high-resolution imaging of surface profiles is critical for the investigation of various structures and mechanical dynamics of micro- and…”
Get full text

Ultrafast, sub-nanometre-precision and multifunctional time-of-flight detection by Jeon, Chan-Gi, Ahn, Changmin, Hyun, Minji, Kwon, Dohyeon, Shin, Junho, Kim, Jungwon

Get full text

Dynamic absolute distance measurement with nanometer-precision and MHz acquisition rate using a frequency comb-based combined method by Ahn, Changmin, Na, Yongjin, Kim, Jungwon

“…•A new dynamic distance measurement method is demonstrated by combining electro-optic sampling with microwave phase detection.•300-mm non-ambiguity range and…”
Get full text

Ultrafast and Subnanometer-Precision Time-of-Flight Detection of >1000 Space-to-Wavelength-Encoded Optical Pulses by Na, Yongjin, Kim, Jungwon

“…We demonstrate ultrafast time-of-flight detection with sub-nm-precision and ~6-mm non-ambiguity-range by electro-optic sampling of optical frequency combs…”
Get full text

Dynamic Distance Measurement with nm-Level Precision and MHz Acquisition Rate Using a Frequency Comb-Based Combined Method by Ahn, Changmin, Na, Yongjin, Kim, Jungwon

“…We demonstrate a dynamic distance measurement method that combines electro-optic sampling-based timing detection and microwave phase detection. At 1-MHz…”
Get full text

Synchronization of an optical frequency comb and a microwave oscillator with -174 dBc/Hz noise floor by Ahn, Changmin, Na, Yongjin, Kim, Jungwon

“…We demonstrate optical-microwave timing synchronization by employing electro-optic sampling-based timing detector with residual phase noise (at 8-GHz carrier)…”
Get full text

High-precision and large-dynamic-range three-dimensional surface profilometry by comb-based time-of-flight detection by Na, Yongjin, Ahn, Changmin, Jeon, Chan-Gi, Kim, Jungwon

“…We demonstrate high-precision (~10-nm repeatability) and large-dynamic-range (120 dB dynamic-range with ~9-mm ambiguity range) three-dimensional surface…”
Get full text

Attosecond Relative Timing Jitter Between Optical Pulses and Rising Edges of Photocurrent Pulses by Hyun, Minji, Na, Yongjin, Chung, Hayun, Kim, Jungwon

“…We characterize relative timing jitter between optical pulses and photocurrent pulses with 300-attosecond resolution. We found that excess timing jitter at the…”
Get full text

Rapid and Precise Displacement Measurement Using Time-of-Flight Detection of Femtosecond Optical Pulses by Na, Yongjin, Hyun, Minji, Jeon, Chan-Gi, Kim, Jungwon

“…We demonstrate high-speed and high-resolution displacement measurement method by utilizing electro-optic sampling between electrical pulses from photodetection…”
Get full text

Simple all-fiber optical-microwave phase detector for subfemtosecond synchronization by Jeon, Chan-Gi, Na, Yongjin, Kim, Jungwon, Lee, Bong-Wan

“…We demonstrate a passively phase-biased simple all-fiber optical-microwave phase detector based on intrinsic phase shift of multiport fiber coupler. It is…”
Get full text