Interferometric Locating the Waist of a Laser Beam
An interferometric method for determining the location of a laser beam waist has been developed, which implements the dependence of the wavefront curvature on its distance to the waist. The initial laser beam, the waist location of which must be determined, is split by a shear interferometer into re...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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V.N. Karazin Kharkiv National University Publishing
2024-12-01
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| Series: | East European Journal of Physics |
| Subjects: | |
| Online Access: | https://periodicals.karazin.ua/eejp/article/view/24325 |
| _version_ | 1826553007203942400 |
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| author | Vyacheslav A. Maslov Konstantin I. Muntean |
| author_facet | Vyacheslav A. Maslov Konstantin I. Muntean |
| author_sort | Vyacheslav A. Maslov |
| collection | DOAJ |
| description | An interferometric method for determining the location of a laser beam waist has been developed, which implements the dependence of the wavefront curvature on its distance to the waist. The initial laser beam, the waist location of which must be determined, is split by a shear interferometer into reference and information beams, which form a spatially non-localized interference field in reflected light. The period of the interference fringes observed in any cross-section of the interference field carries information about the location of the waist of the initial laser beam relative to this section. The distance from the waist to the plane of recording the period of the interference fringes is calculated using the formulas of Gaussian optics. The fundamental difference of this method from currently known ones allows for increasing the accuracy of the obtained result while simultaneously reducing the laboriousness of the measurement process. |
| first_indexed | 2025-02-17T20:56:53Z |
| format | Article |
| id | doaj.art-ca7aa6b0d67f461cbb1aab07395675e1 |
| institution | Directory Open Access Journal |
| issn | 2312-4334 2312-4539 |
| language | English |
| last_indexed | 2025-03-14T07:18:10Z |
| publishDate | 2024-12-01 |
| publisher | V.N. Karazin Kharkiv National University Publishing |
| record_format | Article |
| series | East European Journal of Physics |
| spelling | doaj.art-ca7aa6b0d67f461cbb1aab07395675e12025-03-03T17:25:00ZengV.N. Karazin Kharkiv National University PublishingEast European Journal of Physics2312-43342312-45392024-12-01438639210.26565/2312-4334-2024-4-4524325Interferometric Locating the Waist of a Laser BeamVyacheslav A. Maslov0Konstantin I. Muntean1V.N. Karazin Kharkiv National University, Kharkiv, Ukraine V.N. Karazin Kharkiv National University, Kharkiv, UkraineAn interferometric method for determining the location of a laser beam waist has been developed, which implements the dependence of the wavefront curvature on its distance to the waist. The initial laser beam, the waist location of which must be determined, is split by a shear interferometer into reference and information beams, which form a spatially non-localized interference field in reflected light. The period of the interference fringes observed in any cross-section of the interference field carries information about the location of the waist of the initial laser beam relative to this section. The distance from the waist to the plane of recording the period of the interference fringes is calculated using the formulas of Gaussian optics. The fundamental difference of this method from currently known ones allows for increasing the accuracy of the obtained result while simultaneously reducing the laboriousness of the measurement process.https://periodicals.karazin.ua/eejp/article/view/24325lasergaussian beamwaist locationwavefront curvatureshear interferometertwo-beam interferenceperiod of the interference fringes |
| spellingShingle | Vyacheslav A. Maslov Konstantin I. Muntean Interferometric Locating the Waist of a Laser Beam East European Journal of Physics laser gaussian beam waist location wavefront curvature shear interferometer two-beam interference period of the interference fringes |
| title | Interferometric Locating the Waist of a Laser Beam |
| title_full | Interferometric Locating the Waist of a Laser Beam |
| title_fullStr | Interferometric Locating the Waist of a Laser Beam |
| title_full_unstemmed | Interferometric Locating the Waist of a Laser Beam |
| title_short | Interferometric Locating the Waist of a Laser Beam |
| title_sort | interferometric locating the waist of a laser beam |
| topic | laser gaussian beam waist location wavefront curvature shear interferometer two-beam interference period of the interference fringes |
| url | https://periodicals.karazin.ua/eejp/article/view/24325 |
| work_keys_str_mv | AT vyacheslavamaslov interferometriclocatingthewaistofalaserbeam AT konstantinimuntean interferometriclocatingthewaistofalaserbeam |