High-speed UV micro-machining of polymers with frequency-doubled copper vapor lasers

Glover, Alison C. J.; Illy, Elizabeth K.; Piper, James A.

doi:10.1109/2944.473666

Cited by 28 publications

(9 citation statements)

References 8 publications

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“…Glover et al [39] demonstrated that high beam quality frequency double CVL can enhance the material removal rate per pulse of polymers. They showed that at very high frequency the UV-CVL can give 100 times faster production than the excimer laser.…”

Section: Lbmm Using Copper Vapor Lasers (Cvls)mentioning

confidence: 98%

Laser Beam MicroMachining (LBMM) – A review

Mishra¹,

Yadava

2015

Optics and Lasers in Engineering

238

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Section: Lbmm Using Copper Vapor Lasers (Cvls)mentioning

confidence: 98%

Laser Beam MicroMachining (LBMM) – A review

Mishra¹,

Yadava

2015

Optics and Lasers in Engineering

238

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“…With an average power of 1.8 W and a pulse width of ∼3.6 ps we expect this UV source to exceed the threshold for a synchronously pumped optical parametric oscillator to generate tunable visible and UV radiation [9,10]. Additionally this system could potentially be used for time resolved spectroscopy and micro-machining [11].…”

Section: L41mentioning

confidence: 99%

Cw mode-locked deep UV pulses at an average power of 1.8 W

Garcı́a

Newman

Liu

et al. 2000

J. Opt. A: Pure Appl. Opt.

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“…[1][2][3] In case of metals, the Nd:YAG laser is commonly used because of its high peak power, ability to be run at wide range of pulse width ͑ms-ns͒, and high repetition rate. For an effective use of the laser beam in micromachining, process parameters such as laser power, pulse width, repetition rate, focal position, pulse overlap, incident angle, and number of pulses must be optimized.…”

Section: Introductionmentioning

confidence: 99%

Copper vapor laser micromachining of 304 stainless steel

El-Bandrawy

Nagarathnam

Gupta

et al. 2003

Journal of Laser Applications

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A copper vapor laser ͑CVL͒ of 511/578 nm wavelength, 25 ns pulse width, and 10 kHz repetition rate combined with a computer controlled galvo head was used for laser micromachining of 304 stainless steel. The objective of this study was to develop the CVL micromachining process and its optimization. We observed a significant improvement in micromachining quality with a spatially filtered beam. Micromachining experiments were carried out on stainless steel strip samples of 75, 153, and 356 m thickness. We studied the ablation rate using a single pulse and monitored the heat affected zone ͑HAZ͒ as a function of the applied laser power density. The ablated volume and HAZ are directly proportional to the applied laser power density for low to medium laser powers ͑up to 2ϫ10 13 W/m 2 ). The ranges of HAZ diameter and ablated volume were 15.3-28.7 m and 112.8 -537.6 m 3 , respectively, for the applied power density in the range of 1.0-63.7ϫ10 13 W/m 2 . The roughness created by ablation process was studied at various pulse overlaps at laser power density of 87.8ϫ10 13 W/m 2 . Ablation depth and surface roughness were found to be inversely proportional to the center-to-center pulse overlap and directly proportional to the power density.

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High-speed UV micro-machining of polymers with frequency-doubled copper vapor lasers

Cited by 28 publications

References 8 publications

Laser Beam MicroMachining (LBMM) – A review

Laser Beam MicroMachining (LBMM) – A review

Cw mode-locked deep UV pulses at an average power of 1.8 W

Copper vapor laser micromachining of 304 stainless steel

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