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Evaluation of laser-induced thin-layer removal by using shadowgraphy and laser-induced breakdown spectroscopy
ID
Rabasović, Maja S.
(
Avtor
),
ID
Šević, Dragutin
(
Avtor
),
ID
Lukač, Nejc
(
Avtor
),
ID
Jezeršek, Matija
(
Avtor
),
ID
Možina, Janez
(
Avtor
),
ID
Gregorčič, Peter
(
Avtor
)
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MD5: 418C80B1229BF8206AF8A56F927EC961
Galerija slik
Izvleček
Shadow photography and laser-induced breakdown spectroscopy (LIBS) are studied as methods for monitoring the selective removal of thin (i.e., under 100 [micro]m) layers by laser ablation. We used a laser pulse of 5 ns and 16 mJ at 1064 nm to ablate an 18-[micro]m-thin copper layer from the fiberglass substrate. On the basis of shadowgraphs of the laser-induced shock waves, we measured the optodynamic energy-conversion efficiency, defined as the ratio between the mechanical energy of the shock wave and the excitation-pulse energy. Our results show that this efficiency is significantly higher for the laser pulse-copper interaction than for the interaction between the excitation pulse and the substrate. LIBS was simultaneously employed in our experimental setup. The optical emission from the plasma plume was collected by using a spectrograph and recorded with a streak camera. We show that advancing of laser ablation through the copper layer and reaching of the substrate can be estimated by tracking the spectral region between 370 and 500 nm. Therefore, the presented results confirm that LIBS method enables an on-line monitoring needed for selective removal of thin layers by laser.
Jezik:
Angleški jezik
Ključne besede:
shadow photography
,
laser-induced breakdown spectroscopy
,
laser material processing
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Recenzirani rokopis
Leto izida:
2016
Št. strani:
Str. 1-7
Številčenje:
Vol. 122, iss. 3
PID:
20.500.12556/RUL-105541
UDK:
535(045)
ISSN pri članku:
0947-8396
DOI:
10.1007/s00339-016-9697-3
COBISS.SI-ID:
14519579
Datum objave v RUL:
05.12.2018
Število ogledov:
1381
Število prenosov:
690
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Objavi na:
Gradivo je del revije
Naslov:
Applied physics
Skrajšan naslov:
Appl. phys., A, Mater. sci. process.
Založnik:
Springer
ISSN:
0947-8396
COBISS.SI-ID:
14196007
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
senčna fotografija
,
spektroskopija lasersko povzročene plazme
,
laserski obdelovalni procesi
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0392
Naslov:
Optodinamika
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