Controlling the width of picosecond laser pulses

Al-Obaidi, Hassan N.; Dewhurst, R.J.; Jacoby, Daniel; Oldershaw, G. A.; Ramsden, S.A.

doi:10.1016/0030-4018(75)90217-5

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1975

1982

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Cited by 16 publications

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“…Similarly using the stable dye bis-(4dimethylamino dithio-benzi1)-nickel (BDN), pulses of 55+ 15 ps were generated, and the addition of the same etalon increased the pulse duration to 270 + 55 ps. All such pulse durations had been previously measured using a streak camera with an Sl photocathode (Alobaidi et al 1975), which in addition showed no evidence of satellite pulses accompanying the switched-out pulse. This pulse, having a 1-0cm beam diameter on entry to a pressure chamber, was focused by a plano-convex 6.7 cm focal length lens.…”

Section: L8mentioning

confidence: 98%

The effect of varying pulse durations on the breakdown threshold of laser-produced argon plasmas

Dewhurst¹

1975

J. Phys. D: Appl. Phys.

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The results of gas breakdown in argon are presented where breakdown was caused by picosecond pulses from a Nd:YAG laser. Laser pulsewidths were 30, 55, 140 or 270 ps. Using this data with that previously known, a graph of the variation of breakdown threshold with laser pulse duration leads to confirmation that the predicted behaviour of multiphoton ionization processes expected for very short laser pulses is not observed.

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Section: L8mentioning

confidence: 98%