首页|Ionizing terahertz waves with 260 MV/cm from scalable optical rectification

Ionizing terahertz waves with 260 MV/cm from scalable optical rectification

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
Terahertz(THz)waves,known as non-ionizing radiation owing to their low photon energies,can actually ionize atoms and molecules when a sufficiently large number of THz photons are concentrated in time and space.Here,we demonstrate the generation of ionizing,multicycle,15-THz waves emitted from large-area lithium niobate crystals via phase-matched optical rectification of 150-terawatt laser pulses.A complete characterization of the generated THz waves in energy,pulse duration,and focal spot size shows that the field strength can reach up to 260 megavolts per centimeter.In particular,a single-shot THz interferometer is employed to measure the THz pulse duration and spectrum with complementary numerical simulations.Such intense THz pulses are irradiated onto various solid targets to demonstrate THz-induced tunneling ionization and plasma formation.This study also discusses the potential of nonperturbative THz-driven ionization in gases,which will open up new opportunities,including nonlinear and relativistic THz physics in plasma.

Hyeongmun Kim、Chul Kang、Dogeun Jang、Yulan Roh、Sang Hwa Lee、Joong Wook Lee、Jae Hee Sung、Seong Ku Lee、Ki-Yong Kim

展开 >

Advanced Photonics Research Institute,GIST,Gwangju 61005,Korea

Department of Physics and Optoelectronics Convergence Research Center,Chonnam National University,Gwangju 61186,Korea

Pohang Accelerator Laboratory,POSTECH,Pohang 37673,Korea

Center for Relativistic Laser Science,Institute for Basic Science,Gwangju 61005,Korea

Institute for Research in Electronics and Applied Physics

Department of Physics,University of Maryland,College Park,Maryland 20742,USA

展开 >

APRI-GIST Research InstituteNational Research Foundation of KoreaAir Force Office of Scientific ResearchOffice of Naval Research

GRI 2023NRF-2022R1A2C1012263FA9550-16-0163N00014-17-1-2705

2024

10.1038/s41377-024-01462-w

光:科学与应用(英文版)
中国科学院长春光学精密机械与物理研究所

光:科学与应用(英文版)

CSTPCD
ISSN：2095-5545
年,卷(期)：2024.13(6)