TY - GEN
T1 - Terahertz imaging with optical resolution by femtosecond laser filament in air
AU - Zhao, Jiayu
AU - Chu, Wei
AU - Guo, Lanjun
AU - Wang, Zhi
AU - Yang, Jing
AU - Liu, Weiwei
AU - Cheng, Ya
AU - Xu, Zhizhan
PY - 2014
Y1 - 2014
N2 - We introduce a superresolution resolution THz imaging technique which uses the THz radiation generated by a femtosecond laser filament in air as the probe, based on the fact that the femtosecond laser filament forms a waveguide for the THz wave in air. The diameter of the THz beam, which propagates inside the filament, varies from 20 μm to 50 μm, which is significantly smaller than the wavelength of the THz wave. Using this highly spatially confined THz beam as the probe, THz imaging with resolution as high as 20 μm (~λ/38 at 0.4 THz) is promising.
AB - We introduce a superresolution resolution THz imaging technique which uses the THz radiation generated by a femtosecond laser filament in air as the probe, based on the fact that the femtosecond laser filament forms a waveguide for the THz wave in air. The diameter of the THz beam, which propagates inside the filament, varies from 20 μm to 50 μm, which is significantly smaller than the wavelength of the THz wave. Using this highly spatially confined THz beam as the probe, THz imaging with resolution as high as 20 μm (~λ/38 at 0.4 THz) is promising.
UR - https://www.scopus.com/pages/publications/85087602022
U2 - 10.1364/up.2014.09.wed.p3.1
DO - 10.1364/up.2014.09.wed.p3.1
M3 - 会议稿件
AN - SCOPUS:85087602022
SN - 1557522790
SN - 1557522790
SN - 9781557522795
SN - 9781557522795
T3 - Optics InfoBase Conference Papers
BT - 19th International Conference on Ultrafast Phenomena, UP 2014
PB - Optical Society of America (OSA)
T2 - 19th International Conference on Ultrafast Phenomena, UP 2014
Y2 - 7 July 2014 through 11 July 2014
ER -