Creating an Array of Parallel Vortical Optical Needles
We propose a method for creating parallel Bessel-like vortical optical needles with an arbitrary axial intensity distribution via the superposition of different cone-angle Bessel vortices. We analyzed the interplay between the separation of individual optical vortical needles and their respective le...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/11/3/203 |
| _version_ | 1797239671858659328 |
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| author | Paulius Šlevas Sergej Orlov |
| author_facet | Paulius Šlevas Sergej Orlov |
| author_sort | Paulius Šlevas |
| collection | DOAJ |
| description | We propose a method for creating parallel Bessel-like vortical optical needles with an arbitrary axial intensity distribution via the superposition of different cone-angle Bessel vortices. We analyzed the interplay between the separation of individual optical vortical needles and their respective lengths and introduce a super-Gaussian function as their axial profile. We also analyzed the physical limitations to observe well-separated optical needles, as they are influenced by the mutual interference of the individual beams. To verify our theoretical and numerical results, we generated controllable spatial arrays of individual Bessel beams with various numbers and spatial separations by altering the spectrum of the incoming laser beam via the spatial light modulator. We demonstrate experimentally how to implement such beams using a diffractive mask. The presented method facilitates the creation of diverse spatial intensity distributions in three dimensions, potentially finding applications in specific microfabrication tasks or other contexts. These beams may have benefits in laser material processing applications such as nanochannel machining, glass via production, modification of glass refractive indices, and glass dicing. |
| first_indexed | 2024-04-24T17:55:15Z |
| format | Article |
| id | doaj.art-9b8b95da9d1f474d8a0aee3878b3927e |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-04-24T17:55:15Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-9b8b95da9d1f474d8a0aee3878b3927e2024-03-27T14:00:02ZengMDPI AGPhotonics2304-67322024-02-0111320310.3390/photonics11030203Creating an Array of Parallel Vortical Optical NeedlesPaulius Šlevas0Sergej Orlov1Center for Physical Sciences and Technology, Coherent Optics Laboratory, Sauletekio Ave. 3, LT-10257 Vilnius, LithuaniaCenter for Physical Sciences and Technology, Coherent Optics Laboratory, Sauletekio Ave. 3, LT-10257 Vilnius, LithuaniaWe propose a method for creating parallel Bessel-like vortical optical needles with an arbitrary axial intensity distribution via the superposition of different cone-angle Bessel vortices. We analyzed the interplay between the separation of individual optical vortical needles and their respective lengths and introduce a super-Gaussian function as their axial profile. We also analyzed the physical limitations to observe well-separated optical needles, as they are influenced by the mutual interference of the individual beams. To verify our theoretical and numerical results, we generated controllable spatial arrays of individual Bessel beams with various numbers and spatial separations by altering the spectrum of the incoming laser beam via the spatial light modulator. We demonstrate experimentally how to implement such beams using a diffractive mask. The presented method facilitates the creation of diverse spatial intensity distributions in three dimensions, potentially finding applications in specific microfabrication tasks or other contexts. These beams may have benefits in laser material processing applications such as nanochannel machining, glass via production, modification of glass refractive indices, and glass dicing.https://www.mdpi.com/2304-6732/11/3/203diffractionoptical engineeringspatial light modulatorBessel beamoptical vortexoptical needle |
| spellingShingle | Paulius Šlevas Sergej Orlov Creating an Array of Parallel Vortical Optical Needles Photonics diffraction optical engineering spatial light modulator Bessel beam optical vortex optical needle |
| title | Creating an Array of Parallel Vortical Optical Needles |
| title_full | Creating an Array of Parallel Vortical Optical Needles |
| title_fullStr | Creating an Array of Parallel Vortical Optical Needles |
| title_full_unstemmed | Creating an Array of Parallel Vortical Optical Needles |
| title_short | Creating an Array of Parallel Vortical Optical Needles |
| title_sort | creating an array of parallel vortical optical needles |
| topic | diffraction optical engineering spatial light modulator Bessel beam optical vortex optical needle |
| url | https://www.mdpi.com/2304-6732/11/3/203 |
| work_keys_str_mv | AT pauliusslevas creatinganarrayofparallelvorticalopticalneedles AT sergejorlov creatinganarrayofparallelvorticalopticalneedles |