Temporal coherence of high-order harmonics generated at solid surfaces

• Published in: Applied physics. B, Lasers and optics Vol. 116; no. 1; pp. 121 - 127
• Main Authors: Hemmers, D., Behmke, M., Karsch, S., Keyling, J., Major, Z., Stelzmann, C., Pretzler, G.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2014
• Subjects: Coherence; Doppler effect; Engineering; Harmonics; Lasers; Optical Devices; Optics; Photonics; Physical Chemistry; Physics; Physics and Astronomy; Quantum Optics; Sapphire; Solid surfaces; Temporal logic; Titanium; Path Difference; Spectral Bandwidth; Coherence Length; Pulse Train; Group Velocity Dispersion

We present interferometric measurements of the temporal coherence of high-order harmonics generated by reflection of a titanium sapphire laser off a solid surface. It is found that the coherence length of the harmonic emission is significantly reduced compared with the bandwidth limited case. To ide...