Ramsey-type spectroscopy with high-order harmonics

被引：49

作者：

Cavalieri, S

Eramo, R

Materazzi, M

Corsi, C

Bellini, M

机构：

[1] Ist Nazl Fis Mat, Unita Ric Firenze, I-50019 Sesto Fiorentino, Italy

[2] Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy

[3] Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy

[4] Univ Aquila, Fac Sci, Dipartimento Fis, INFM,Unita Ric Aquila, I-67100 Laquila, Italy

[5] Ist Nazl Ott Applicata, I-50125 Florence, Italy

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.89.133002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an experiment where Ramsey-type spectroscopy is applied to autoionizing states of krypton by using the ninth harmonic (88 nm) of a femtosecond Ti:sapphire laser. The ionization process, detected by an electron-energy spectrometer, shows the characteristic quantum interference pattern. The behavior of the fringe contrast compares favorably with a simple essential-state model, whose parameters have been taken from the literature. The experiment shows the feasibility of high-resolution spectroscopy in the extreme ultraviolet by using high-order laser harmonics.

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页数：4

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