Tight focusing properties of spirally polarized LG (1,1)* beam with High NA Parabolic mirror
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DOI: 10.1007/s11082-018-1320-8
Abstract: The tight focusing of double ring shaped spirally polarized beam with high NA Parabolic mirror system is analyzed numerically based on the vector diffraction theory. Calculation results show that intensity distribution in focal region can be… read more here.
Keywords: polarized beam; spirally polarized; beam high; beam ... See more keywords
Generalized vector diffraction model for tight focusing of light with arbitrary polarization state
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DOI: 10.1016/j.ijleo.2019.163528
Abstract: Abstract Tight focusing of light with specific polarizations creates distinctive electromagnetic field distributions in the focal region, and plays an essential role in various applications such as scanning laser microscopy, light-matter interaction, and particle manipulation.… read more here.
Keywords: vector; vector diffraction; model; generalized vector ... See more keywords
Tight focusing of high-order polarized anomalous vortex beam
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DOI: 10.1088/1555-6611/ac5b74
Abstract: Based on the vector Debye theory, the tight focusing properties of a high-order polarized anomalous vortex (HPAV) beam are studied. The corresponding mathematical expressions of the HPAV beam are derived theoretically. We accomplish the inner… read more here.
Keywords: tight focusing; order; beam; order polarized ... See more keywords
Real-Time Monitoring of the Energy Deposition under the Tight Focusing of Femtosecond Laser Radiation into a Bulk Transparent Dielectric Based on Third Harmonic Signal
Sign Up to like & getrecommendations! Published in 2018 at "JETP Letters"
DOI: 10.1134/s0021364018070044
Abstract: It has been found that the third harmonic generated under the tight focusing of a near-infrared (1.24-μm) femtosecond laser pulse indicates the energy deposition into the bulk transparent dielectric and can be used as a… read more here.
Keywords: bulk transparent; third harmonic; laser; femtosecond laser ... See more keywords
Tight focusing of laser light using a chromium Fresnel zone plate.
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DOI: 10.1364/oe.25.019662
Abstract: Using near-field scanning microscopy, we demonstrate that a 15-µm zone plate fabricated in a 70-nm chromium film sputtered on a glass substrate and having a focal length and outermost zone's width equal to the incident… read more here.
Keywords: zone; subwavelength focal; focusing laser; zone plate ... See more keywords
Investigation of long wavelength mid-infrared generation in the tight focusing limit.
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DOI: 10.1364/oe.27.024945
Abstract: An ultrafast coherent long wavelength MIR source based on difference frequency generation was demonstrated. An average power of 2.5 mW at ∼18 μm was achieved. The angular distribution of the generated MIR source under the… read more here.
Keywords: generation; investigation long; long wavelength; tight focusing ... See more keywords
Mechanism of laser induced filamentation in dielectrics.
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DOI: 10.1364/oe.395185
Abstract: Femtosecond laser filamentation in transparent media has a wide range of applications, from three dimensional manufacturing to biological technologies to supercontinuum generation. While there has been extensive investigations over the last two decades, there remain… read more here.
Keywords: laser; induced filamentation; mechanism laser; tight focusing ... See more keywords