Text this

Number:

Provider:

CAPTCHA:

 __   _      ___      _  _    _    _      _____  
| || | ||   / _ \\   | \| || | || | ||   / ___// 
| '--' ||  / //\ \\  |  ' || | || | ||   \___ \\ 
| .--. || |  ___  || | .  || | \\_/ ||   /    // 
|_|| |_|| |_||  |_|| |_|\_||  \____//   /____//  
`-`  `-`  `-`   `-`  `-` -`    `---`   `-----`

Please enter what you see:

Text this: Resonant acceleration of electrons by intense circularly polarized Gaussian laser pulses