Design and Fabrication of Miniature Objective Lens for Laser Ablation Surgery Probe

Shadfan, Adam; Pawłowski, M.; Subramanian, Kaushik; Yıldırım, Murat; Gabay, Ilan; Ben‐Yakar, Adela; Tkaczyk, Tomasz S.

doi:10.1364/boda.2015.bt2a.4

Cited by 1 publication

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“…Laser ablation [1] and specifically scribing [2] have widespread applications in pioneering science [3][4][5][6][7], industry [8][9][10][11] and medicine [12][13][14][15][16][17]. Generally, this phenomenon could be investigated in both bulk and thin film materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of scanning speed on continuous wave laser scribing of metal thin films: theory and experiment

2016

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In this paper continuous wave laser scribing of the metal thin films have been investigated theoretically and experimentally. A formulation is presented based on parameters like beam power, spot size, scanning speed and fluence thresholds. The role of speed on the transient temperature and tracks width is studied numerically. By using two frameworks of pulsed laser ablation of thin films and laser printing on paper, the relation between ablation width and scanning speed has been derived. Furthermore, various speeds of the focused 450 nm continuous laser diode with an elliptical beam spot applied to a 290 nm copper thin film coated on glass, experimentally. The beam power was 150 mW after spatial filtering. By fitting the theoretical formulation to the experimental data, the threshold fluence and energy were obtained to be 13.2 J mm −2 and 414 µJ respectively. An anticipated theoretical parameter named equilibrium border was verified experimentally. It shows that in the scribing of the 290 nm copper thin film, at a distance where the intensity reaches about 1/e of its maximum value, the absorbed fluence on the surface is equal to zero. Therefore the application of continuous laser in metal thin film ablation has different mechanism from pulsed laser drilling and beam scanning in printers.

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Section: Introductionmentioning

confidence: 99%

Effect of scanning speed on continuous wave laser scribing of metal thin films: theory and experiment

2016

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Design and Fabrication of Miniature Objective Lens for Laser Ablation Surgery Probe

Abstract: A prototype miniature objective was designed and fabricated for use in a laser ablation probe utilizing a piezo scanned fiber to rapidly produce a large cutting region, improving functionality and speed for laser ablation surgery.

Cited by 1 publication

References 5 publications

Effect of scanning speed on continuous wave laser scribing of metal thin films: theory and experiment

Effect of scanning speed on continuous wave laser scribing of metal thin films: theory and experiment

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