Coherent phase contrast imaging of THz phonon-polariton tunneling

被引：2
|
作者：
Peier, P. [1 ]
Nelson, K. A. [2 ]
Feurer, T. [1 ]
机构：
[1] Univ Bern, Inst Appl Phys, CH-3012 Bern, Switzerland
[2] MIT, Dept Chem, Cambridge, MA 02139 USA
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2010年 / 99卷 / 03期
基金：
瑞士国家科学基金会;
关键词：
CHERENKOV RADIATION; TERAHERTZ PULSES; TIME; GENERATION; DELAY;
D O I：
10.1007/s00340-009-3886-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on coherent spatiotemporal imaging of single-cycle THz waves in frustrated total internal reflection geometry. Our technique yields images of the spatiotemporal electric field distribution before and after tunneling through an air gap in between two LiNbO3 crystals. Measurements of the reflected and the transmitted THz waveforms for different tunnel distances allow for a direct comparison with results from a causal linear dispersion theory and excellent agreement is found.
引用
收藏
页码：433 / 439
页数：7
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