Autocorrelation of femtosecond VUV pulses using multiphoton ionization

Masanori Kaku; Wataru Nagaya; Hironari Zushi; Masahito Katto; Shoichi Kubodera

doi:10.1117/12.872099

17 February 2011 Autocorrelation of femtosecond VUV pulses using multiphoton ionization

Masanori Kaku, Wataru Nagaya, Hironari Zushi, Masahito Katto, Shoichi Kubodera

Proceedings Volume 7915, High Energy/Average Power Lasers and Intense Beam Applications V; 79150G (2011) https://doi.org/10.1117/12.872099
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We have developed an autocorrelator utilizing multiphoton ionization of rare gases as a nonlinear medium to evaluate the pulse width of a femtosecond Ti:Sapphire laser at 882 nm. The autocorrelation width of 171 fs (FWHM) was evaluated by the autocorrelator utilizing nine-photon ionization of Ar. By using the ninth-order correlation factor of 1.06, the actual pulse width of 161 fs (FWHM) was determined, which was consistent to that of 165 fs (FWHM) measured with a two-photon autocorrelator. The autocorrelation measurement utilizing the multiphoton ionization of Ar should be applied to vacuum ultraviolet (VUV) ultrashort pulses at 126 nm, since neutral Ar atoms will be ionized by two-photon absorption. This method has a potential to become a versatile autocorrelator that characterizes femtosecond laser pulse widths in the wide spectral range between IR and VUV.

Citation Download Citation

Masanori Kaku, Wataru Nagaya, Hironari Zushi, Masahito Katto, and Shoichi Kubodera "Autocorrelation of femtosecond VUV pulses using multiphoton ionization", Proc. SPIE 7915, High Energy/Average Power Lasers and Intense Beam Applications V, 79150G (17 February 2011); https://doi.org/10.1117/12.872099

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available