laser fluence and pulse duration

Evaluation of a long-pulsed Nd:YAG laser at different parameters: an analysis of both fluence and pulse duration.

Then it is converted to the units of square centimeters at the IIt should be noted, that Laser-Induced Damage Threshold (LIDT) expressed as laser peak fluence is always quoted with the pulse duration used for the testing. You may subscribe either as an OSA member, or as an authorized user of your institution. You do not have subscription access to this journal. From the time-dependent optical intensity, one can obtain the fluence by temporal integration over the full pulse duration. Eventually, a couple of optimized LC parameters that doubled the maximum damage threshold of DKDP crystal is proposed.You do not have subscription access to this journal. In general, the sub-nanosecond LC effect is better than the nanosecond LC. Only if other resources available (images, video, datasets)• Use these formats for best results: Smith or J Smith The result shows that higher LC fluence leads to a better damage resistance.

Laser Research Center, The impact of laser conditioning (LC) fluence and pulse duration on nanosecond (ns) laser damage performance of deuterated potassium dihydrogen phosphate (DKDP) crystal is studied. © Copyright 2020 | The Optical Society.

Paint ablation with a 532 nm wavelength results mainly in thermal ablation, because no apparent electronic transitions inducing direct bond breaking are … You may subscribe either as an OSA member, or as an authorized user of your institution.

Sauletekio Avenue 10, You do not have subscription access to this journal. Fourier transform-limited pulse duration. Laser fluence and pulse duration are critical parameters for plasma structure. In general, the sub-nanosecond LC effect is better than the nanosecond LC.

• Different regimes of laser-support absorption wave are used for interpretation. z o.o. 1010 – 1070 nm (other on request) Maximum chirped pulse duration ... Fluence sp. Zhichao Liu, Feng Geng, Xiangyang Lei, Yaguo Li, Jian Cheng, Yi Zheng, Jian Wang, and Qiao Xu, "Effect of laser pulse duration and fluence on DKDP crystal laser conditioning," Appl. • Plasma shielding due to various species leads to different plasma structures. You do not have subscription access to this journal. Laser–matter interaction is known to depend on several laser parameters: wavelength, fluence, pulse duration and repetition rate. You may subscribe either as an OSA member, or as an authorized user of your institution. Learn more about our response to COVID-19 including information for You may subscribe either as an OSA member, or as an authorized user of your institution. The impact of laser conditioning (LC) fluence and pulse duration on nanosecond (ns) laser damage performance of deuterated potassium dihydrogen phosphate (DKDP) crystal is studied. This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. Figure files are available to subscribers only. Click Laser fluence describes the energy delivered per unit (or effective) area. More informations. © 2019 LIDARIS LIDT Service. Citation lists with outbound citation links are available to subscribers only. Author information: (1)Skin Laser & Surgery Specialists of New York and New Jersey, Hackensack, NJ, USA. Want to learn more on LIDT measurements and evaluation? Check out different testing regimes at LIDARIS LTD. @ Vilnius University, Article level metrics are available to subscribers only. Opt. You may subscribe either as an OSA member, or as an authorized user of your institution. Within the community of laser scientists and technicians, it is very common to define fluence in units of J/cmIn the case of Gaussian beams, effective focal spot area is registered by CCDs. 60 – 400 fs: Input central wavelength. Cited by links are available to subscribers only. Thus, laser peak power value can be always calculated, if necessary. Lithuania Common Uses of Fluence Values If an intense short or ultrashort pulse saturates the gain e.g.

The fluence is the energy of a laser pulse divided by the area it is illuminating, and for historical reasons is the general term of choice when describing LA-ICP-MS conditions. However, in the range of 0.3 ns to 0.8 ns, the pulse duration has no obvious impact on the LC effect. Zhichao Liu, Feng Geng, Xiangyang Lei, Yaguo Li, Jian Cheng, Yi Zheng, Jian Wang, and Qiao Xu This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. LT-10223 Vilnius, You do not have subscription access to this journal. Advanced ultrashort laser pulse characterization device. Sometimes (in other communities) intensity of laser peak power density is used instead of fluence: While laser peak power is defined as: It should be noted, that Laser-Induced Damage Threshold (LIDT) expressed as laser peak fluence is always quoted with the pulse duration used for the testing. Article tables are available to subscribers only. Rogachefsky AS(1), Becker K, Weiss G, Goldberg DJ. • Splashing ejection is observed for strong plasma shielding with long pulse. The result shows that higher LC fluence leads to a better damage resistance. An ultra-fast process characterization technology is employed to demonstrate that the cleaning effect of the protuberance defects on the surface is one of sub-ns LC mechanism. All Rights Reserved. The influence of laser fluence and pulse duration on the morphology and the internal structure of the plasma has been thus studied for different ablation regimes.