High efficiency and scalable fabrication of fresnel zone plates using ..- variable holographic femtosecond laser processing by use of a spatial light modulator ,Request PDF | High efficiency and scalable fabrication of fresnel zone plates using holographic femtosecond pulses | To meet the growing demand for photonic integration and device miniaturization ..Holographic femtosecond laser processing by use of a spatial light ..Parallel femtosecond laser processing using a hologram displayed on a spatial light modulator is demonstrated.. The use of a spatial light modulator enables to perform an arbitrary and variable patterning.. The hologram is multiplexed phase Fresnel lenses (MPFL) is demonstrated.. The MPFL has the features of an independent tunablity and three ..
To overcome this problem, holographic laser processing using a spatial light modulator (SLM) has been actively researched to substantially improve the fabrication efficiency by shaping the laser ..
We propose a holographic femtosecond laser processing system capable of parallel, arbitrary, and variable patterning.. These features are achieved by introducing a spatial light modulator displaying a hologram into the femtosecond laser processing system.. We demonstrate the variable parallel processing of a glass sample..
Parallel femtosecond laser processing using a computer-generated hologram (CGH) displayed on a spatial light modulator (SLM), called holographic femtosecond laser processing, provides the advantages of high throughput and high energy-use efficiency..
S.. Hasegawa and Y.. Hayasaki, "Holographic femtosecond laser processing system with adaptive wavefornt control," in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, (Optica Publishing Group, 2011), paper C932..
A powerful tool femtosecond laser processing [1,2] using a computer-generated hologram (CGH) displayed on a spatial light modulator (LCOS-SLM), called holographic femtosecond laser processing, and ..
S.. Hasegawa and Y.. Hayasaki, "Holographic femtosecond laser processing system with adaptive wavefornt control," in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, (Optica Publishing Group, 2011), paper C932..
The detector array signals are processed to produce an electronic hologram which is imposed as a phase pattern on a spatial light modulator.. A laser reads out the hologram to direct a beam of radiation at the target.. Multiple sequential illumination and hologram formation/readout steps produce a small spot size at the selected aimpoint..
The use of the femtosecond laser enables generation of small spot sizes and ablation features.. Ablation of the smallfeatures usually requires only a small amount of laser power to be delivered to the ablation spot.. When using only a onebeam for the ablation of the small features this process is bound to be time consuming.. The spatial light modulator (SLM) together with the computer generated ..
Holographic femtosecond laser processing with multiplexed phase Fresnel lenses for high-speed parallel fabrication of microstructures is proposed.. Use of a spatial light modulator (SLM) allows independent tunability of the diffraction peaks, three-dimensional parallelism, and arbitrary, variable features..
The use of a spatial light modulator enables to perform an arbitrary and variable patterning.. This holographic femtosecond laser processing has advantages of high-speed and high light-use efficiency.. A critical issue is to precisely control the intensities of the diffraction peaks of the computer-generated hologram.. We demonstrated some methods ..
Abstract.. Line-shaped femtosecond pulses are well-suited to large-area machining with high throughput in laser cutting, peeling, and grooving of materials.. First, we demonstrated the single-shot fabrication of a line structure in a glass surface using a line-shaped pulse generated by a holographic cylindrical lens displayed on a liquid-crystal ..
Femtosecond laser processing with sub-diffraction-limit focusing beyond the diffraction limit is demonstrated.. It is realized with a computer-generated hologram designed by a proximity-complex amplitude optimization method..
The use of a spatial light modulator enables to perform an arbitrary and variable patterning.. This holographic femtosecond laser processing has advantages of high-speed and high light-use efficiency.. A critical issue is to precisely control the intensities of the diffraction peaks of the computer-generated hologram.. We demonstrated some methods ..
Holographic femtosecond laser processing with multiplexed phase Fresnel lenses for high-speed parallel fabrication of microstructures is proposed.. Use of a spatial light modulator (SLM) allows independent tunability of the diffraction peaks, three-dimensional parallelism, and arbitrary, variable features.. The diffraction peaks are made uniform by changing the center phase and size of each ..
Femtosecond laser material processing offers several advantages, including high spatial resolution and reduced thermal destruction.. The high spatial resolu-tion occurs because laser pulses can be focused tightly in a transparent material, at which point multiphoton absorp-tion, optical field ionization, and a corresponding Coulomb explosion can occur in a submicrometer-sized location..
Fig.. 1.. Holographic femtosecond laser processing system with the in-system CGH optimization.. 2..3 Large-scale holographic femtosecond laser processing Figure 2(a) shows an optical reconstruction from the CGH optimized in the computer (the conventional ORA method) and its intensity profile on the line indicated by the gray arrow.. The
We propose a holographic femtosecond laser processing system capable of parallel, arbitrary, and variable patterning.. These features are achieved by introducing a spatial light modulator displaying a hologram into the femtosecond laser processing system.. We demonstrate the variable parallel processing of a glass sample..
Parallel femtosecond laser processing with a computer-generated hologram displayed on a spatial light modulator (SLM) is demonstrated.. Use of the SLM enables performance of an arbitrary and variable patterning in laser processing.. The hologram uses multiplexed phase Fresnel lenses (MPFLs) with features of independent tunability, three-dimensional (3D) parallelism of the diffraction peaks ..
Fig.. 4 presents the optical design for the holographic femtosecond laser processing system.. The main components of the experimental setup are a femtosecond laser system, a liquid-crystal-on-silicon spatial light modulator (LCoS SLM), a telescope system, a microscopic imaging system and a personal computer..
Parallel femtosecond laser processing using a hologram displayed on a spatial light modulator is demonstrated.. The use of a spatial light modulator enables to perform an arbitrary and variable patterning.. The hologram is multiplexed phase Fresnel lenses (MPFL) is demonstrated.. The MPFL has the features of an independent tunablity and three-dimensional parallelism of the diffraction peaks with ..
Fig.. 4 presents the optical design for the holographic femtosecond laser processing system.. The main components of the experimental setup are a femtosecond laser system, a liquid-crystal-on-silicon spatial light modulator (LCoS SLM), a telescope system, a microscopic imaging system and a personal computer..
Holographic femtosecond laser processing with multiplexed phase Fresnel lenses for high-speed parallel fabrication of microstructures is proposed.. Use of a spatial light modulator (SLM) allows independent tunability of the diffraction peaks, three-dimensional parallelism, and arbitrary, variable features.. The diffraction peaks are made uniform by changing the center phase and size of each ..
Parallel femtosecond laser processing using a hologram displayed on a spatial light modulator is demonstrated.. The use of a spatial light modulator enables to perform an arbitrary and variable patterning.. The hologram is multiplexed phase Fresnel lenses (MPFL) is demonstrated.. The MPFL has the features of an independent tunablity and three-dimensional parallelism of the diffraction peaks with ..
Parallel femtosecond laser processing with a computer-generated hologram displayed on a spatial light modulator (SLM) is demonstrated.. Use of the SLM enables performance of an arbitrary and variable patterning in laser processing.. The hologram uses multiplexed phase Fresnel lenses (MPFLs) with features of independent tunability, three-dimensional (3D) parallelism of the diffraction peaks ..
