Damage in Laser Materials

Glass, Alexander J.; Guenther, Arthur H.

doi:10.1364/ao.11.000832

Cited by 22 publications

(3 citation statements)

References 14 publications

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“…Regular meetings of scientists and engineers, as well as proceedings of the symposia have had a significant impact on the development of research in the field of high power optics in many countries. [11][12][13] The data presented in this review allow one to reconsider important aspects of temperature gradients, thermoelastic stresses and thermal deformations in POEs, resulting from the exposure of their surfaces to high-power laser radiation. In this case, use is made of the relations between the quantities characterising the thermal stress state in any nonstationary regimes of energy input into a solid, which are similar to Duhamel's integral formula from the theory of heat conduction.…”

Section: Introductionmentioning

confidence: 99%

High power optics

Аполлонов¹

2018

OAJMTP

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The advent of the laser has placed stringent requirements on the fabrication, performance and quality of optical elements employed within systems for most practical applications. Their high power performance is generally governed by three distinct steps, firstly the absorption of incident optical radiation (governed primarily by various absorption mechanisms); secondly, followed by a temperature increase and response governed primarily by thermal properties and finally the elements thermo-optical and thermomechanical response, e.g., distortion, stress birefringenous fracture, etc. All of which needs to be understood in the design of efficient, compact, reliable and useful for many applications high power systems, under a variety of operating conditions, pulsed, continuous wave, rep-rated or burst mode of varying duty cycles which is the most important for the wide spectrum of applications.

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Section: Introductionmentioning

confidence: 99%

High power optics

Аполлонов¹

2018

OAJMTP

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“…TiOz and SiOz are hard and durable laser damage resistant materials widely used to produce multilayer coatings in visible region [7} The LIDT for TiOz/SiOz high reflectors up to 13.5J/cm at 1064nm-lns laser pulse, 1.IJ/cm2 at 800nm-220ps and 0.57J/cm z at 800nm-50fs have been reported [3,8]. However, the researches above were focused on the short pulse laser with pulse width of nanoseconds and below.…”

Section: Introductionmentioning

confidence: 99%

Study on Millisecond and Nanosecond laser-induced damage of TiO<inf>2</inf>/SiO<inf>2</inf> anti-reflectors

Wang

Zhu

Lü

et al. 2011

Proceedings of 2011 International Conference on Electronics and Optoelectronics

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The laser induced damage threshold (LIDT) of Ti0 2 /Si0 2 anti-reflectors (AR) acted by IOns-1064nm and lms lO64nm lasers are investigated. The LITD at IOns and lms pulse duration are 2.9J/cm 2 and 290J/cm 2 , respectively. The damaged morphologies are observed by metallographic microscope. It is found that the damage during lOns and lms pulse duration are film damage and substrate damage, respectively. Analysis of laser-induced damage on AR coatings is carried out by temperature field calculation. Theoretical results show that Ims laser induced damage depth is deeper than that of the IOns and meet experimental well.

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“…(1) the free electrons and holes available to be trapped at defect sites are efficiently produced with relatively low photon densities and the subsequent absorption of intense optical radiation by these defects which causes thermal breakdown is eliminated, (2) x-rays can penetrate the bulk of the material thus providing a large volume of defects available for investigation, and (3) irradiations can be carried out at low temperature so that transient effects can be stabilized.…”

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<title>Role of point defects in optical damage of nonlinear crystals</title>

Scripsick

Edwards

1993

SPIE Proceedings

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We have initiated a program at West Virginia University to establish the properties of point defects that are relevant to the optical damage phenomena in KTP, BBO, and LBO crystals. Defects have been characterized using optical absorption, electron paramagnetic resonance (EPR), electron-nuclear double resonance (ENDOR), and luminescence techniques. Among the defects which have been observed are impurity ions (iron , platinum, hydrogen, etc.), trapped hole centers , and trapped electron centers.

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Damage in Laser Materials

Abstract: The third ASTM symposium on damage in laser materials held at NBS in May 1971 is discussed, and the results are reviewed.

Cited by 22 publications

References 14 publications

High power optics

High power optics

Study on Millisecond and Nanosecond laser-induced damage of TiO<inf>2</inf>/SiO<inf>2</inf> anti-reflectors

<title>Role of point defects in optical damage of nonlinear crystals</title>

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