Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals
Some metallographic observations of the surface of polycrystalline specimens in an optical microscope illuminated with a HeNe laser beam, at oblique incidence, are compared with observations with white light also at oblique incidence. It is shown that similar effects are obtained in both cases; howe...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00303992_v29_n2_p67_Povolo |
| Aporte de: |
| id |
todo:paper_00303992_v29_n2_p67_Povolo |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_00303992_v29_n2_p67_Povolo2023-10-03T14:39:57Z Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals Povolo, F. Canzian, A. Favret, E. Laser metallography Optical microscopy of metals Partial dark field illumination Electromagnetic dispersion Helium neon lasers Laser beams Lighting Metallography Metals Optical variables measurement Polycrystalline materials Laser metallography Partial dark field illumination (PDFI) Unidirectional laser oblique illumination (ULOI) Optical microscopy Some metallographic observations of the surface of polycrystalline specimens in an optical microscope illuminated with a HeNe laser beam, at oblique incidence, are compared with observations with white light also at oblique incidence. It is shown that similar effects are obtained in both cases; however, the width of the maximum in the dispersed intensity is narrower in the case of illumination with the laser beam. In addition, this kind of illumination permits us to distinguish distinct angular directions of the surface roughness. © 1997 Elsevier Science Ltd. All rights reserved. Fil:Povolo, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Canzian, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Favret, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00303992_v29_n2_p67_Povolo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Laser metallography Optical microscopy of metals Partial dark field illumination Electromagnetic dispersion Helium neon lasers Laser beams Lighting Metallography Metals Optical variables measurement Polycrystalline materials Laser metallography Partial dark field illumination (PDFI) Unidirectional laser oblique illumination (ULOI) Optical microscopy |
| spellingShingle |
Laser metallography Optical microscopy of metals Partial dark field illumination Electromagnetic dispersion Helium neon lasers Laser beams Lighting Metallography Metals Optical variables measurement Polycrystalline materials Laser metallography Partial dark field illumination (PDFI) Unidirectional laser oblique illumination (ULOI) Optical microscopy Povolo, F. Canzian, A. Favret, E. Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals |
| topic_facet |
Laser metallography Optical microscopy of metals Partial dark field illumination Electromagnetic dispersion Helium neon lasers Laser beams Lighting Metallography Metals Optical variables measurement Polycrystalline materials Laser metallography Partial dark field illumination (PDFI) Unidirectional laser oblique illumination (ULOI) Optical microscopy |
| description |
Some metallographic observations of the surface of polycrystalline specimens in an optical microscope illuminated with a HeNe laser beam, at oblique incidence, are compared with observations with white light also at oblique incidence. It is shown that similar effects are obtained in both cases; however, the width of the maximum in the dispersed intensity is narrower in the case of illumination with the laser beam. In addition, this kind of illumination permits us to distinguish distinct angular directions of the surface roughness. © 1997 Elsevier Science Ltd. All rights reserved. |
| format |
JOUR |
| author |
Povolo, F. Canzian, A. Favret, E. |
| author_facet |
Povolo, F. Canzian, A. Favret, E. |
| author_sort |
Povolo, F. |
| title |
Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals |
| title_short |
Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals |
| title_full |
Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals |
| title_fullStr |
Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals |
| title_full_unstemmed |
Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals |
| title_sort |
unidirectional laser oblique illumination (uloi): a comparison with partial dark field illumination (pdfi) in the optical microscopy of metals |
| url |
http://hdl.handle.net/20.500.12110/paper_00303992_v29_n2_p67_Povolo |
| work_keys_str_mv |
AT povolof unidirectionallaserobliqueilluminationuloiacomparisonwithpartialdarkfieldilluminationpdfiintheopticalmicroscopyofmetals AT canziana unidirectionallaserobliqueilluminationuloiacomparisonwithpartialdarkfieldilluminationpdfiintheopticalmicroscopyofmetals AT favrete unidirectionallaserobliqueilluminationuloiacomparisonwithpartialdarkfieldilluminationpdfiintheopticalmicroscopyofmetals |
| _version_ |
1782027709861330944 |