Using NBOHC fluorescence to predict multi-pulse laser-induced damage in fused silica

Beaudier, Alexandre; Wagner, Frank; Natoli, Jean-Yves

doi:10.1016/j.optcom.2017.06.073

Cited by 14 publications

(4 citation statements)

References 31 publications

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“…On the other hand, synthetic fused silica glass is known to emit red fluorescence derived from the laser-induced defect, nonbridging oxygen hole center associated with damage during repeated pulses of DUV laser irradiation. 25,26) In synthetic silica glass, the red fluorescence was observed to increase with the number of shots of irradiation. In SBO crystal, however, no clear fluorescence in the visible region was observed.…”

Section: ( ) ( ) ( ) = -+mentioning

confidence: 99%

Bulk laser-induced damage resistance of SrB₄O₇ single crystals under 266 nm DUV laser irradiation

Maegaki

Tanaka

Marui

et al. 2022

Jpn. J. Appl. Phys.

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The bulk laser-induced damage threshold (LIDT) of a strontium tetraborate (SrB4O7, SBO) single crystal has been measured for the first time. Single-shot and multi-shot tests are carried out using a 266-nm deep ultraviolet (DUV) laser. Under single-shot irradiation, the bulk LIDT of SBO crystal is 1.5 times higher than that of a synthetic silica glass. On the other hand, under multi-shot irradiation, the bulk LIDT of SBO is also higher than synthetic silica glass regardless of the number of shots. When the number of shots increased from 102 to 104, SBO crystal’s bulk LIDT has only decreased by less than 11 % compared to 44 % of synthetic silica glass. Although the damage mechanism of SBO crystal under multi-shot irradiation is considered to be due to material modification fatigue, SBO single crystals are found to be excellent optical materials that exhibit bulk laser-induced damage resistance in the DUV region.

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Section: ( ) ( ) ( ) = -+mentioning

confidence: 99%

Bulk laser-induced damage resistance of SrB₄O₇ single crystals under 266 nm DUV laser irradiation

Maegaki

Tanaka

Marui

et al. 2022

Jpn. J. Appl. Phys.

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“…More precisely, cumulative material modifications during the incubation pluses have been detected by modifications in the transient refractive index change in silicate glasses, 34 by changes in the (transient) photoacoustic signal in alkali-halide crystals, 26 by long living UV-absorption changes in fused silica fibers, 35 and, more recently, by long living changes in the Raman spectrum 36 as well as by changes of intermediate lifetime in the fluorescence intensity 37 and the absorption spectrum. 38 But, even if experimental evidence for cumulative material modifications is found, the link of these modifications with fatigue laser damage may be quite indirect 37 and thus rather difficult to prove. Long and detailed investigations, including the development of quantitative models, are necessary to "prove" the connection between the observed material modifications and the occurrence of laser damage.…”

Section: Modification Of the Host Materialsmentioning

confidence: 99%

Discussing defects related to nanosecond fatigue laser damage: a short review

2018

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Laser damage measurements with multiple pulses at constant fluence (S-on-1 measurements) are of high practical importance for design and validation of high-power photonic instruments. Using nanosecond lasers, it was recognized long ago that single-pulse laser damage is linked to fabrication-related defects. Models describing the laser damage probability as the probability of encounter between the high fluence region of the laser beam and the fabrication-related defects are thus widely used. Nanosecond S-on-1 tests often reveal the "fatigue effect," i.e., a decrease of the laser damage threshold with increasing pulse number. Most authors attribute this effect to cumulative material modifications operated by the incubation pulses. We discuss the different situations that are observed upon nanosecond S-on-1 measurements that are reported in literature and speak in particular about the defects involved in the laser damage mechanism. These defects may be fabrication related or laser induced, stable or evolutive, cumulative or of short lifetime.

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“…The integration of silica glasses in optical and electronic devices are, at present, limited by the effects of high-energy radiation on the transmission and reflection properties of the material. As reported in a large number of studies [1][2][3][4][5][6][7][8][9][10][11], the irradiation of silica with either photons or energetic particles (neutrons, electrons, protons, heavy ions) activates a wide range of damage processes that result in the formation of point defects. These localized irregularities of the network are characterized by one or more energy levels lying in the band gap of the dielectric and are responsible for the shift in the optical absorption edge of the glass to lower energies.…”

Section: Introductionmentioning

confidence: 99%

Intrinsic Point Defects in Silica for Fiber Optics Applications

2021

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Due to its unique properties, amorphous silicon dioxide (a-SiO2) or silica is a key material in many technological fields, such as high-power laser systems, telecommunications, and fiber optics. In recent years, major efforts have been made in the development of highly transparent glasses, able to resist ionizing and non-ionizing radiation. However the widespread application of many silica-based technologies, particularly silica optical fibers, is still limited by the radiation-induced formation of point defects, which decrease their durability and transmission efficiency. Although this aspect has been widely investigated, the optical properties of certain defects and the correlation between their formation dynamics and the structure of the pristine glass remains an open issue. For this reason, it is of paramount importance to gain a deeper understanding of the structure–reactivity relationship in a-SiO2 for the prediction of the optical properties of a glass based on its manufacturing parameters, and the realization of more efficient devices. To this end, we here report on the state of the most important intrinsic point defects in pure silica, with a particular emphasis on their main spectroscopic features, their atomic structure, and the effects of their presence on the transmission properties of optical fibers.

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Using NBOHC fluorescence to predict multi-pulse laser-induced damage in fused silica

Cited by 14 publications

References 31 publications

Bulk laser-induced damage resistance of SrB₄O₇ single crystals under 266 nm DUV laser irradiation

Bulk laser-induced damage resistance of SrB₄O₇ single crystals under 266 nm DUV laser irradiation

Discussing defects related to nanosecond fatigue laser damage: a short review

Intrinsic Point Defects in Silica for Fiber Optics Applications

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Using NBOHC fluorescence to predict multi-pulse laser-induced damage in fused silica

Cited by 14 publications

References 31 publications

Bulk laser-induced damage resistance of SrB4O7 single crystals under 266 nm DUV laser irradiation

Bulk laser-induced damage resistance of SrB4O7 single crystals under 266 nm DUV laser irradiation

Discussing defects related to nanosecond fatigue laser damage: a short review

Intrinsic Point Defects in Silica for Fiber Optics Applications

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Product

Resources

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Bulk laser-induced damage resistance of SrB₄O₇ single crystals under 266 nm DUV laser irradiation

Bulk laser-induced damage resistance of SrB₄O₇ single crystals under 266 nm DUV laser irradiation