Ultrashort-pulse dual-wavelength source for digital holographic two-wavelength contouring
Digital holographic shape measurements using femtosecond laser pulses are reported. For contouring of very fast moving objects, the simultaneous generation of at least two spectrally separated ultrashort pulses is required. To deliver this particular spectral signature at high pulse energies, a chir...
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| Veröffentlicht in: | Applied physics. B, Lasers and optics Lasers and optics, 2007-12, Vol.89 (4), p.513-516 |
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| container_title | Applied physics. B, Lasers and optics |
| container_volume | 89 |
| creator | HANSEL, T MÜLLER, J FALLDORF, C VON KOPYLOW, C JÜPTNER, W GRUNWALD, R STEINMEYER, G GRIEBNER, U |
| description | Digital holographic shape measurements using femtosecond laser pulses are reported. For contouring of very fast moving objects, the simultaneous generation of at least two spectrally separated ultrashort pulses is required. To deliver this particular spectral signature at high pulse energies, a chirped-pulse Ti:sapphire laser amplifier was modified to emit two spectrally separated pulses with energies above 1 Delta *mJ each. The wavelength separation of these pulses was adjustable within the 50 nm gain bandwidth, cutting out two distinct wavelength peaks by a variable double-slit assembly in a prism sequence. A Michelson-type interferometer was employed to perform the two-wavelength contouring. The phases of the holograms and the phase differences are calculated numerically, which allow us to deduce the contour lines of the topology of the object. The suitability of the light source for digital holography is demonstrated with contouring of stationary objects and the potential for high-speed applications is indicated. |
| doi_str_mv | 10.1007/s00340-007-2849-6 |
| format | Article |
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For contouring of very fast moving objects, the simultaneous generation of at least two spectrally separated ultrashort pulses is required. To deliver this particular spectral signature at high pulse energies, a chirped-pulse Ti:sapphire laser amplifier was modified to emit two spectrally separated pulses with energies above 1 Delta *mJ each. The wavelength separation of these pulses was adjustable within the 50 nm gain bandwidth, cutting out two distinct wavelength peaks by a variable double-slit assembly in a prism sequence. A Michelson-type interferometer was employed to perform the two-wavelength contouring. The phases of the holograms and the phase differences are calculated numerically, which allow us to deduce the contour lines of the topology of the object. The suitability of the light source for digital holography is demonstrated with contouring of stationary objects and the potential for high-speed applications is indicated.</description><identifier>ISSN: 0946-2171</identifier><identifier>EISSN: 1432-0649</identifier><identifier>DOI: 10.1007/s00340-007-2849-6</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Biological and medical applications ; Contouring ; Design of specific laser systems ; Digital ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; Holograms ; Holography ; Interferometers ; Laser optical systems: design and operation ; Lasers ; Metrological applications ; Optics ; Phases ; Physics ; Wavelengths</subject><ispartof>Applied physics. 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B, Lasers and optics</title><description>Digital holographic shape measurements using femtosecond laser pulses are reported. For contouring of very fast moving objects, the simultaneous generation of at least two spectrally separated ultrashort pulses is required. To deliver this particular spectral signature at high pulse energies, a chirped-pulse Ti:sapphire laser amplifier was modified to emit two spectrally separated pulses with energies above 1 Delta *mJ each. The wavelength separation of these pulses was adjustable within the 50 nm gain bandwidth, cutting out two distinct wavelength peaks by a variable double-slit assembly in a prism sequence. A Michelson-type interferometer was employed to perform the two-wavelength contouring. The phases of the holograms and the phase differences are calculated numerically, which allow us to deduce the contour lines of the topology of the object. The suitability of the light source for digital holography is demonstrated with contouring of stationary objects and the potential for high-speed applications is indicated.</description><subject>Biological and medical applications</subject><subject>Contouring</subject><subject>Design of specific laser systems</subject><subject>Digital</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Holograms</subject><subject>Holography</subject><subject>Interferometers</subject><subject>Laser optical systems: design and operation</subject><subject>Lasers</subject><subject>Metrological applications</subject><subject>Optics</subject><subject>Phases</subject><subject>Physics</subject><subject>Wavelengths</subject><issn>0946-2171</issn><issn>1432-0649</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpNkD9PwzAUxC0EEqXwAdiyICbDc-w48Ygq_kmVWOjAZDmOnQS5cbAdKr49qVoJ3nI3_O6kdwhdE7gjAOV9BKAM8GxxXjGB-QlaEEZzDJyJU7QAwTjOSUnO0UWMnzAfr6oF-ti4FFTsfEh4nFw0WTMph3fq2zgztKnLop-CNpn1IWv6tk_KZZ13vg1q7HqdpZ3_T2s_pDnQD-0lOrNqLrw66hJtnh7fVy94_fb8unpYY01LmnABTNVAdc5twcrKNqSeHwBTGVEzIxphVJ43hOda1TWForaCN0CVsZVgBiq6RLeH3jH4r8nEJLd91MY5NRg_RSmIEKwUJcwkOZA6-BiDsXIM_VaFH0lA7leUhxXl3u5XlHzO3BzbVdTK2aAG3ce_oBBQQsHpL7dGdG4</recordid><startdate>20071201</startdate><enddate>20071201</enddate><creator>HANSEL, T</creator><creator>MÜLLER, J</creator><creator>FALLDORF, C</creator><creator>VON KOPYLOW, C</creator><creator>JÜPTNER, W</creator><creator>GRUNWALD, R</creator><creator>STEINMEYER, G</creator><creator>GRIEBNER, U</creator><general>Springer</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20071201</creationdate><title>Ultrashort-pulse dual-wavelength source for digital holographic two-wavelength contouring</title><author>HANSEL, T ; MÜLLER, J ; FALLDORF, C ; VON KOPYLOW, C ; JÜPTNER, W ; GRUNWALD, R ; STEINMEYER, G ; GRIEBNER, U</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-504ab03c26f5478fd1b2840e8e9b4e9d9ea22d162cabb305bf96d03aef894e083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Biological and medical applications</topic><topic>Contouring</topic><topic>Design of specific laser systems</topic><topic>Digital</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Holograms</topic><topic>Holography</topic><topic>Interferometers</topic><topic>Laser optical systems: design and operation</topic><topic>Lasers</topic><topic>Metrological applications</topic><topic>Optics</topic><topic>Phases</topic><topic>Physics</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HANSEL, T</creatorcontrib><creatorcontrib>MÜLLER, J</creatorcontrib><creatorcontrib>FALLDORF, C</creatorcontrib><creatorcontrib>VON KOPYLOW, C</creatorcontrib><creatorcontrib>JÜPTNER, W</creatorcontrib><creatorcontrib>GRUNWALD, R</creatorcontrib><creatorcontrib>STEINMEYER, G</creatorcontrib><creatorcontrib>GRIEBNER, U</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics. B, Lasers and optics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HANSEL, T</au><au>MÜLLER, J</au><au>FALLDORF, C</au><au>VON KOPYLOW, C</au><au>JÜPTNER, W</au><au>GRUNWALD, R</au><au>STEINMEYER, G</au><au>GRIEBNER, U</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultrashort-pulse dual-wavelength source for digital holographic two-wavelength contouring</atitle><jtitle>Applied physics. B, Lasers and optics</jtitle><date>2007-12-01</date><risdate>2007</risdate><volume>89</volume><issue>4</issue><spage>513</spage><epage>516</epage><pages>513-516</pages><issn>0946-2171</issn><eissn>1432-0649</eissn><abstract>Digital holographic shape measurements using femtosecond laser pulses are reported. For contouring of very fast moving objects, the simultaneous generation of at least two spectrally separated ultrashort pulses is required. To deliver this particular spectral signature at high pulse energies, a chirped-pulse Ti:sapphire laser amplifier was modified to emit two spectrally separated pulses with energies above 1 Delta *mJ each. The wavelength separation of these pulses was adjustable within the 50 nm gain bandwidth, cutting out two distinct wavelength peaks by a variable double-slit assembly in a prism sequence. A Michelson-type interferometer was employed to perform the two-wavelength contouring. The phases of the holograms and the phase differences are calculated numerically, which allow us to deduce the contour lines of the topology of the object. The suitability of the light source for digital holography is demonstrated with contouring of stationary objects and the potential for high-speed applications is indicated.</abstract><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s00340-007-2849-6</doi><tpages>4</tpages></addata></record> |
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| ispartof | Applied physics. B, Lasers and optics, 2007-12, Vol.89 (4), p.513-516 |
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| subjects | Biological and medical applications Contouring Design of specific laser systems Digital Exact sciences and technology Fundamental areas of phenomenology (including applications) Holograms Holography Interferometers Laser optical systems: design and operation Lasers Metrological applications Optics Phases Physics Wavelengths |
| title | Ultrashort-pulse dual-wavelength source for digital holographic two-wavelength contouring |
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