In:
Optics Letters, Optica Publishing Group, Vol. 46, No. 11 ( 2021-06-01), p. 2795-
Abstract:
This Letter demonstrates a novel, to the best of our knowledge, method to measure the fluence distribution of an intense short laser pulse based on the radiochromic effect. We discovered that an intense short laser pulse can induce the color reaction with a radiochromic film (RCF). Further, the net optical density of an irradiated RCF is proportional to the fluence of the incident laser pulse in a large range ( 2 − 120 m J / c m 2 ). This method supports a large detection area up to near square-meter scale by splicing multi-pieces of RCFs ( 8 × 10 i n c h 2 each). The spatial resolution reaches as high as 60 lines/mm. It offers a thin-film ( ∼ 100 µ m thick), flexible, vacuum-compatible solution to intense short laser measurements, especially to laser facilities above petawatt, with beam sizes up to near square-meter scale, e.g., extreme light infrastructure.
Type of Medium:
Online Resource
ISSN:
0146-9592
,
1539-4794
Language:
English
Publisher:
Optica Publishing Group
Publication Date:
2021
detail.hit.zdb_id:
243290-0
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