Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals
Nonlinear frequency conversion provides a powerful tool to generate and manipulate structured light at new wavelengths. In this work, to meet the demands of applications such as high-capacity optical communications and high-dimensional entanglement generation, we use ferroelectric domain engineering...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2025-01-01
|
| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0245407 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832542769463164928 |
|---|---|
| author | Xinyu Zhang Hangyu Li Shiqiang Liu Yan Chen Zhihan Zhu Hui Liu Shining Zhu Xiaopeng Hu |
| author_facet | Xinyu Zhang Hangyu Li Shiqiang Liu Yan Chen Zhihan Zhu Hui Liu Shining Zhu Xiaopeng Hu |
| author_sort | Xinyu Zhang |
| collection | DOAJ |
| description | Nonlinear frequency conversion provides a powerful tool to generate and manipulate structured light at new wavelengths. In this work, to meet the demands of applications such as high-capacity optical communications and high-dimensional entanglement generation, we use ferroelectric domain engineering to generate frequency-doubled light beams carrying orbital angular momentum (OAM) superposition states and with adjustable radial intensity distribution. Angular and radial phase modulations were introduced into the modulation function of the second-order nonlinear coefficient distribution of lithium tantalate nonlinear photonic crystals, achieving simultaneous tailoring of the OAM spectrum and the radial intensity profile of the second harmonic (SH) waves. As a representative example, we demonstrate the generation of a SH wave that carries a comb-like OAM spectrum, with the radial intensity distribution concentrating on a ring with a specific radius. In addition, the nonlinear photonic devices developed in this work feature polarization insensitivity and broadband characteristics. |
| format | Article |
| id | doaj-art-1a1a0daf06d74f1aa9312f5712efc3b0 |
| institution | Kabale University |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-1a1a0daf06d74f1aa9312f5712efc3b02025-02-03T16:36:22ZengAIP Publishing LLCAPL Photonics2378-09672025-01-01101010802010802-710.1063/5.0245407Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystalsXinyu Zhang0Hangyu Li1Shiqiang Liu2Yan Chen3Zhihan Zhu4Hui Liu5Shining Zhu6Xiaopeng Hu7National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, ChinaNational Key Laboratory of Optical Field Manipulation Science and Technology, Chengdu 610209, ChinaWang Da-Heng Center, HLJ Key Laboratory of Quantum Control, Harbin University of Science and Technology, Harbin 150080, ChinaNational Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, ChinaNonlinear frequency conversion provides a powerful tool to generate and manipulate structured light at new wavelengths. In this work, to meet the demands of applications such as high-capacity optical communications and high-dimensional entanglement generation, we use ferroelectric domain engineering to generate frequency-doubled light beams carrying orbital angular momentum (OAM) superposition states and with adjustable radial intensity distribution. Angular and radial phase modulations were introduced into the modulation function of the second-order nonlinear coefficient distribution of lithium tantalate nonlinear photonic crystals, achieving simultaneous tailoring of the OAM spectrum and the radial intensity profile of the second harmonic (SH) waves. As a representative example, we demonstrate the generation of a SH wave that carries a comb-like OAM spectrum, with the radial intensity distribution concentrating on a ring with a specific radius. In addition, the nonlinear photonic devices developed in this work feature polarization insensitivity and broadband characteristics.http://dx.doi.org/10.1063/5.0245407 |
| spellingShingle | Xinyu Zhang Hangyu Li Shiqiang Liu Yan Chen Zhihan Zhu Hui Liu Shining Zhu Xiaopeng Hu Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals APL Photonics |
| title | Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals |
| title_full | Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals |
| title_fullStr | Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals |
| title_full_unstemmed | Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals |
| title_short | Tailoring beam profile and OAM spectrum in domain-engineered nonlinear photonic crystals |
| title_sort | tailoring beam profile and oam spectrum in domain engineered nonlinear photonic crystals |
| url | http://dx.doi.org/10.1063/5.0245407 |
| work_keys_str_mv | AT xinyuzhang tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT hangyuli tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT shiqiangliu tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT yanchen tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT zhihanzhu tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT huiliu tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT shiningzhu tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals AT xiaopenghu tailoringbeamprofileandoamspectrumindomainengineerednonlinearphotoniccrystals |