Measuring optical frequencies in the 0-40 THz range with non-synchronized electro-optic sampling
作者： P. Gaal , M. B. Raschke , K. Reimann , M. Woerner
关键词: Pulse duration 、 Femtosecond 、 Optical fiber 、 Laser 、 Optoelectronics 、 Photonics 、 Optics 、 Wavelength 、 Biophotonics 、 Terahertz radiation 、 Materials science
摘要: Measurements using optical frequency combs1,2,3,4,5,6 are now important in high-precision spectroscopy. However, measurement techniques described so far either restricted to narrow ranges or difficult implement the far-infrared regime. Here we present a time-domain method for direct of frequencies mid- and spectral region. The is analogous sampling scope, with electric field source measured by electro–optic sampling7,8,9,10,11,12,13 light pulses from femtosecond laser as probe. highest that can be our ‘sampling scope’ determined pulse length laser. When 12-fs probe used, up 40 THz, corresponding wavelength 7.5 µm, possible9.
nature.com
harvard.edu
sci-hub.se 参考文章(23)
A. Amy-Klein, A. Goncharov, C. Daussy, C. Grain, O. Lopez, G. Santarelli, C. Chardonnet, Absolute frequency measurement in the 28-THz spectral region with a femtosecond laser comb and a long-distance optical link to a primary standard Applied Physics B. ,vol. 78, pp. 25- 30 ,(2004) , 10.1007/S00340-003-1335-Z
T. M. Ramond, S. A. Diddams, L. Hollberg, A. Bartels, Phase-coherent link from optical to microwave frequencies by means of the broadband continuum from a 1-GHz Ti:sapphire femtosecond oscillator Optics Letters. ,vol. 27, pp. 1842- 1844 ,(2002) , 10.1364/OL.27.001842
Q. Wu, X.‐C. Zhang, Free‐space electro‐optic sampling of terahertz beams Applied Physics Letters. ,vol. 67, pp. 3523- 3525 ,(1995) , 10.1063/1.114909
Q. Wu, X.-C. Zhang, Free-space electro-optics sampling of mid-infrared pulses Applied Physics Letters. ,vol. 71, pp. 1285- 1286 ,(1997) , 10.1063/1.119873
R. Huber, A. Brodschelm, F. Tauser, A. Leitenstorfer, Generation and field-resolved detection of femtosecond electromagnetic pulses tunable up to 41 THz Applied Physics Letters. ,vol. 76, pp. 3191- 3193 ,(2000) , 10.1063/1.126625
A. Leitenstorfer, C. Fürst, A. Laubereau, Widely tunable two-color mode-locked Ti:sapphire laser with pulse jitter of less than 2 fs. Optics Letters. ,vol. 20, pp. 916- 918 ,(1995) , 10.1364/OL.20.000916
Th Udem, J Reichert, R_ Holzwarth, TW Hänsch, None, Absolute Optical Frequency Measurement of the CesiumD1Line with a Mode-Locked Laser Physical Review Letters. ,vol. 82, pp. 3568- 3571 ,(1999) , 10.1103/PHYSREVLETT.82.3568
Robert A. Kaindl, Klaus Reimann, Michael Woerner, Thomas Elsaesser, R. Hey, K. H. Ploog, Homogeneous broadening and excitation-induced dephasing of intersubband transitions in a quasi-two-dimensional electron gas Physical Review B. ,vol. 63, pp. 161308- ,(2001) , 10.1103/PHYSREVB.63.161308
K. Reimann, R. P. Smith, A. M. Weiner, T. Elsaesser, M. Woerner, Direct field-resolved detection of terahertz transients with amplitudes of megavolts per centimeter. Optics Letters. ,vol. 28, pp. 471- 473 ,(2003) , 10.1364/OL.28.000471
Ivar Waller, Zur Frage der Einwirkung der W�rmebewegung auf die Interferenz von R�ntgenstrahlen Zeitschrift f�r Physik. ,vol. 17, pp. 398- 408 ,(1923) , 10.1007/BF01328696