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Title: Enhanced laser conditioning using temporally shaped pulses

Abstract

Laser conditioning was investigated as a function of the temporal shape and duration of 351-nm, nanosecond pulses for fused-silica substrates polished via magnetorheological finishing. Here, the aim is to advance our understanding of the dynamics involved to enable improved control of the interaction of laser light with the material to optimize laser conditioning. Gaussian pulses that are temporally truncated at the intensity peak are observed to enhance laser conditioning, in comparison to a Gaussian pulse shape.

Authors:
ORCiD logo [1];  [1];  [1]
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  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1426478
Alternate Identifier(s):
OSTI ID: 1423514
Report Number(s):
2017-250; 13-78
Journal ID: ISSN 0146-9592; OPLEDP; 2017-250, 1378, 2335
Grant/Contract Number:  
NA0001944
Resource Type:
Accepted Manuscript
Journal Name:
Optics Letters
Additional Journal Information:
Journal Volume: 43; Journal Issue: 6; Journal ID: ISSN 0146-9592
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Laser damage; laser materials processing; silica; pulse shaping

Citation Formats

Kafka, K. R. P., Papernov, S., and Demos, S. G. Enhanced laser conditioning using temporally shaped pulses. United States: N. p., 2018. Web. doi:10.1364/OL.43.001239.
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Kafka, K. R. P., Papernov, S., & Demos, S. G. Enhanced laser conditioning using temporally shaped pulses. United States. doi:10.1364/OL.43.001239.
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Kafka, K. R. P., Papernov, S., and Demos, S. G. Tue . "Enhanced laser conditioning using temporally shaped pulses". United States. doi:10.1364/OL.43.001239. https://www.osti.gov/servlets/purl/1426478.
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@article{osti_1426478,
title = {Enhanced laser conditioning using temporally shaped pulses},
author = {Kafka, K. R. P. and Papernov, S. and Demos, S. G.},
abstractNote = {Laser conditioning was investigated as a function of the temporal shape and duration of 351-nm, nanosecond pulses for fused-silica substrates polished via magnetorheological finishing. Here, the aim is to advance our understanding of the dynamics involved to enable improved control of the interaction of laser light with the material to optimize laser conditioning. Gaussian pulses that are temporally truncated at the intensity peak are observed to enhance laser conditioning, in comparison to a Gaussian pulse shape.},
doi = {10.1364/OL.43.001239},
journal = {Optics Letters},
number = 6,
volume = 43,
place = {United States},
year = {2018},
month = {3}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI:  10.1364/OL.43.001239
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Figures / Tables:

Figure 1 Figure 1: Laser‐induced–damage testing (LIDT) results versus pulse duration and shape. The 1‐on‐1 (green) Gaussian results fit to a power‐ law pulse‐width scaling of $\tau^{0.52}$ and the canonical $\tau^{0.5}$ is plotted (solid line). The N‐on‐1 (blue) results indicate that laser conditioning is strongly dependent on pulse shape and duration (Gaussianmore » empirical fit $\tau^{0.33}$). The inset shows the measured temporal profiles of the truncated (red) and reverse‐truncated (blue) pulses.« less
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