Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896047900> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W2896047900 abstract "The performance of high power laser cutting systems is often degraded by thermal lensing of the cutting head optics. Thermal lensing occurs when a small fraction of the beam is absorbed by the lens during operation. The absorbed power increases the temperature of the lens, which raises its index of refraction in positive dn/dT materials. The increased index of refraction causes the beam to focus early, shifting the focus back towards the cutting head. With three or more lenses in most 1 µm laser cutting heads, thermal lensing effects can quickly accumulate, resulting in focus shifts of several millimeters or more in multi-kW systems [1].Mirrors, alternatively, have the opposite effect on focus shift [2]. A mirror surface becomes more convex as its surface temperature rises from laser power absorption. Consequently this causes the laser beam to diverge and shift the focus away from the cutting head. Mirrors used with lenses in this way can help compensate for thermal lensing effects in high power laser systems.The goal of this paper is to characterize thermal focus shift mechanisms for different lenses and mirrors. A high power cutting head will be designed using a combination of mirrors and lenses to minimize focus shift. A breadboard version of the cutting head will be tested.The performance of high power laser cutting systems is often degraded by thermal lensing of the cutting head optics. Thermal lensing occurs when a small fraction of the beam is absorbed by the lens during operation. The absorbed power increases the temperature of the lens, which raises its index of refraction in positive dn/dT materials. The increased index of refraction causes the beam to focus early, shifting the focus back towards the cutting head. With three or more lenses in most 1 µm laser cutting heads, thermal lensing effects can quickly accumulate, resulting in focus shifts of several millimeters or more in multi-kW systems [1].Mirrors, alternatively, have the opposite effect on focus shift [2]. A mirror surface becomes more convex as its surface temperature rises from laser power absorption. Consequently this causes the laser beam to diverge and shift the focus away from the cutting head. Mirrors used with lenses in this way can help compensate for thermal lensing effects in high power laser sys..." @default.
- W2896047900 created "2018-10-26" @default.
- W2896047900 creator A5023974691 @default.
- W2896047900 creator A5025901748 @default.
- W2896047900 creator A5049742664 @default.
- W2896047900 creator A5065478918 @default.
- W2896047900 creator A5088729636 @default.
- W2896047900 date "2014-01-01" @default.
- W2896047900 modified "2023-09-25" @default.
- W2896047900 title "Design and characterization of a 1 micron high power cutting head with minimal thermal focus shift" @default.
- W2896047900 doi "https://doi.org/10.2351/1.5063110" @default.
- W2896047900 hasPublicationYear "2014" @default.
- W2896047900 type Work @default.
- W2896047900 sameAs 2896047900 @default.
- W2896047900 citedByCount "0" @default.
- W2896047900 crossrefType "proceedings-article" @default.
- W2896047900 hasAuthorship W2896047900A5023974691 @default.
- W2896047900 hasAuthorship W2896047900A5025901748 @default.
- W2896047900 hasAuthorship W2896047900A5049742664 @default.
- W2896047900 hasAuthorship W2896047900A5065478918 @default.
- W2896047900 hasAuthorship W2896047900A5088729636 @default.
- W2896047900 hasConcept C114793014 @default.
- W2896047900 hasConcept C115171683 @default.
- W2896047900 hasConcept C120665830 @default.
- W2896047900 hasConcept C121332964 @default.
- W2896047900 hasConcept C127313418 @default.
- W2896047900 hasConcept C153294291 @default.
- W2896047900 hasConcept C15336307 @default.
- W2896047900 hasConcept C168834538 @default.
- W2896047900 hasConcept C187151468 @default.
- W2896047900 hasConcept C192209626 @default.
- W2896047900 hasConcept C192562407 @default.
- W2896047900 hasConcept C200649887 @default.
- W2896047900 hasConcept C204530211 @default.
- W2896047900 hasConcept C2780312720 @default.
- W2896047900 hasConcept C2984025587 @default.
- W2896047900 hasConcept C42067758 @default.
- W2896047900 hasConcept C520434653 @default.
- W2896047900 hasConceptScore W2896047900C114793014 @default.
- W2896047900 hasConceptScore W2896047900C115171683 @default.
- W2896047900 hasConceptScore W2896047900C120665830 @default.
- W2896047900 hasConceptScore W2896047900C121332964 @default.
- W2896047900 hasConceptScore W2896047900C127313418 @default.
- W2896047900 hasConceptScore W2896047900C153294291 @default.
- W2896047900 hasConceptScore W2896047900C15336307 @default.
- W2896047900 hasConceptScore W2896047900C168834538 @default.
- W2896047900 hasConceptScore W2896047900C187151468 @default.
- W2896047900 hasConceptScore W2896047900C192209626 @default.
- W2896047900 hasConceptScore W2896047900C192562407 @default.
- W2896047900 hasConceptScore W2896047900C200649887 @default.
- W2896047900 hasConceptScore W2896047900C204530211 @default.
- W2896047900 hasConceptScore W2896047900C2780312720 @default.
- W2896047900 hasConceptScore W2896047900C2984025587 @default.
- W2896047900 hasConceptScore W2896047900C42067758 @default.
- W2896047900 hasConceptScore W2896047900C520434653 @default.
- W2896047900 hasLocation W28960479001 @default.
- W2896047900 hasOpenAccess W2896047900 @default.
- W2896047900 hasPrimaryLocation W28960479001 @default.
- W2896047900 hasRelatedWork W1964862338 @default.
- W2896047900 hasRelatedWork W1967490842 @default.
- W2896047900 hasRelatedWork W1971117563 @default.
- W2896047900 hasRelatedWork W1977585608 @default.
- W2896047900 hasRelatedWork W2021524970 @default.
- W2896047900 hasRelatedWork W2027163286 @default.
- W2896047900 hasRelatedWork W2036715076 @default.
- W2896047900 hasRelatedWork W2046757848 @default.
- W2896047900 hasRelatedWork W2051564000 @default.
- W2896047900 hasRelatedWork W2099959952 @default.
- W2896047900 hasRelatedWork W2327879820 @default.
- W2896047900 hasRelatedWork W2391871499 @default.
- W2896047900 hasRelatedWork W2567230134 @default.
- W2896047900 hasRelatedWork W2765943991 @default.
- W2896047900 hasRelatedWork W2895796285 @default.
- W2896047900 hasRelatedWork W2896255581 @default.
- W2896047900 hasRelatedWork W2896966639 @default.
- W2896047900 hasRelatedWork W2991405466 @default.
- W2896047900 hasRelatedWork W3026349729 @default.
- W2896047900 hasRelatedWork W3386799 @default.
- W2896047900 isParatext "false" @default.
- W2896047900 isRetracted "false" @default.
- W2896047900 magId "2896047900" @default.
- W2896047900 workType "article" @default.