Short-pulse CO<sub>2</sub> laser for photochemical studies

A. W. Pasternak; D. J. James; J. A. Nilson; D. K. Evans; Robert D. McAlpine; H. M. Adams; E. B. Selkirk

doi:10.1364/AO.20.003849

Applied Optics
Vol. 20,
Issue 22,
pp. 3849-3852
(1981)
•https://doi.org/10.1364/AO.20.003849

Short-pulse CO₂ laser for photochemical studies

A. W. Pasternak, D. J. James, J. A. Nilson, D. K. Evans, Robert D. McAlpine, H. M. Adams, and E. B. Selkirk

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A. W. Pasternak, D. J. James, J. A. Nilson, D. K. Evans, Robert D. McAlpine, H. M. Adams, and E. B. Selkirk, "Short-pulse CO₂ laser for photochemical studies," Appl. Opt. 20, 3849-3852 (1981)

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Abstract

A line-tunable CO₂ laser system is described producing repeatable pulses with selectable widths from 2 to 60 nsec. High energy contrast ratio (minimum of 10) is achieved in both the P and R branches of the 9- and 10-μm bands making this system a valuable source for photochemical studies.

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	2-nsec cable		10-nsec cable

Laser line	Energy (mJ)	Contrast ratio	Energy (mJ)	Contrast ratio	FWHM (nsec)
10-μm P6			60	67	8
8			250	26	7
10			325	13	5
12	105	21	380	52	6
14	280	17	490	32
16	330	15	550	>550
18	405	9	585	390
20	470	6	845	170
22	325	13	620	250
24	260	14	650	35
26	235	17	650	9
28	180	20	680	4
30	100	40	490	7
32			325	7
34			250	7
36			100	14
38			40	15
10-μm R8			80	83	10
10			250	56	6
12			300	38	6
14			300	14	5
16			400	11	6
18			400	15	9
20			400	14	6
22			500	23	6
24			450	15	6
26			400	20	7
28			400	25	7
30			250	45	8
32			100	47	9
9-μm P20			340	10
24			250	15
30			240	20
9-μm R14	20	7
16	40	15
18	35	13
20	40	12
22	60	11

Abstract

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Applied Optics