Photoelectrons From Picosecond Laser Pulses On Mg

N K Sherman; P B Corkum; T Srinivasan-Rao

doi:10.1117/12.938685

21 October 1986 Photoelectrons From Picosecond Laser Pulses On Mg

N K Sherman, P B Corkum, T Srinivasan-Rao

Proceedings Volume 0664, High Intensity Laser Processes; (1986) https://doi.org/10.1117/12.938685
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada

Abstract

We find Mg illuminated in vacuum with picosecond UV pulses to be a robust and useful photocathode even at roughing pressures. Photocurrent densities as great as 180 A/cm2 occur at moderate collecting field strengths E of 0.5 to 2 kV/cm. In pulses briefer than the electron transit time across a diode, space charge causes the collected charge to increase linearly with anode voltage. The observed Mg quantum efficiency of 2.5 x 10^-6 electrons per 300 nm photon was doubled by "red assist" when intense 600 nm pulses were simultaneously present. We give a criterion for E_min for complete charge collection from trains of picosecond optical pulses.

Citation Download Citation

N K Sherman, P B Corkum, and T Srinivasan-Rao "Photoelectrons From Picosecond Laser Pulses On Mg", Proc. SPIE 0664, High Intensity Laser Processes, (21 October 1986); https://doi.org/10.1117/12.938685

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