Laser fluence Calculator

15 0 obj U.S. Laser Corporation Puls. Thus, the power tells you how quickly the energy is delivered and usually provides more of an idea as to how much impact the laser pulse will have. 0000003737 00000 n endobj /Length 2421

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12 0 obj 14 0 obj 0000018440 00000 n %PDF-1.2 >> /H [ 728 227 ] /TrimBox [0 0 612 792] /N 2 0000018927 00000 n For pulsed lasers, energy per pulse, pulse duration, fluence, and spot size are the most important parameters. /P 0 The standard unit is called a watt (W). This quantity is typically measured using an energy meter. stream The LDT calculator should not be substituted for direct LIDT testing of optics utilized in a given application where laser damage is a crucial parameter. Typical Pulse from a U.S. Laser Q-switched laser U.S. Laser Corporation 825 Windham Court N. Wyckoff, NJ 07481 Phone (201) 848-9200 FAX (201) 848-9006 TECH.

Laser Damage Threshold Calculator. trailer 13 0 obj /XObject << /Im21 24 0 R /Im22 25 0 R >> /ProcSet [/PDF /Text /ImageC] %���� Both lasers and electrical pulsed circuits often need an estimation of the individual pulse characteristics based on easily measurable quantities such as the average power and repetition rate. Semrock's Laser Damage Threshold Calculator is provided for reference / guidance purposes only.

The average power will be the total energy of all pulses emitted in 1 second, thus: Average Power = Energy Per Pulse × Pulses Per Second.When the power is divided by the area on which is it distributed, then we get the irradiance. << 0000000728 00000 n Laser Properties and Parameters When working with lasers, there are a few definitions that need to be clearly understood. endobj 0000038359 00000 n /L 93963

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There is no special unit for irradiance, and we simply use the explicit term: W/mThe 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. Detailed knowledge of the physical essence of femtosecond laser and Ni3Al interactions is of great significance for the effective processing of film-c… >> 26 0 obj 0000000628 00000 n /Linearized 1 %%EOF

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>> /E 81781 Knowing this is helpful, but it does not explain how the energy is distributed in space.

/Contents 15 0 R /CropBox [0 0 612 792] 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. We believe a regularly-calibrated hand-held energy meter is essential for any LA-ICP-MS laboratory and have always ensured that << stream /Resources << /Length 156 /S 84 0000000955 00000 n >> >> /Root 13 0 R 0000004895 00000 n

12 15 This can then be used to determine how a certain material responds to the laser light. 0000017487 00000 n

/Outlines 7 0 R Here is a short glossary of commonly used terms, along with their Measured in joules (J) the energy of a laser pulse is, by itself, not typically a very helpful quantity to know, since it is also important to know how the energy is distributed in both time and space. � ;� *4 � )T endstream Fluence = Energy/Area." >> xref 0000005326 00000 n /Type /Page

Page - 1 Figure 1. /Type /Catalog >> /Pages 10 0 R << startxref endobj For continuous-wave lasers, time, power, and spot size are essential. Rather than quoting the power-per-pulse, it is common to quote the average power.

<< /Size 27 It is very common for laser manufacturers to quote the total energy per pulse, however keep in mind that this number is not the same as the energy reaching the sample.The power is the energy of the pulse divided by the duration. This is a very useful property to know, since it describes the total energy of the pulse, as well as how it is distributed in both space and time. /Parent 10 0 R << 0

/Filter [/FlateDecode ] /T 93599 When using this calc to describe electrical circuits, the "wavelength" and … It is most commonly used in laser applications when the pulse duration is constant and well known, as with an Starting with energy, consider a laser ablation instrument delivering an on-sample pulse energy of 0.5mJ. It is most commonly used in laser applications when the pulse duration is constant and well known, as with an excimer laser which typically produces pulses of 5-20ns in duration, depending on the model and manufacturer. The energy can be measured with an energy meter, or is given by the manufacturer or their software. /Names << /Dests 4 0 R>> The intensity of a light source, such as a laser, can be described in many different ways. 0000061400 00000 n /Prev 93587

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