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162 results

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Page 1
Modern Types of Axicons: New Functions and Applications.
Khonina SN, Kazanskiy NL, Khorin PA, Butt MA. Khonina SN, et al. Sensors (Basel). 2021 Oct 8;21(19):6690. doi: 10.3390/s21196690. Sensors (Basel). 2021. PMID: 34641014 Free PMC article. Review.
We looked at four different and special approaches for creating nondiffracting beams in this article. Diffractive axicons, meta-axicons-flat optics, spatial light modulators, and photonic integrated circuit-based axicons are among these approaches. Lat …
We looked at four different and special approaches for creating nondiffracting beams in this article. Diffractive axicons, met …
Near-Field Vortex Beams Diffraction on Surface Micro-Defects and Diffractive Axicons for Polarization State Recognition.
Savelyev D, Kazanskiy N. Savelyev D, et al. Sensors (Basel). 2021 Mar 11;21(6):1973. doi: 10.3390/s21061973. Sensors (Basel). 2021. PMID: 33799707 Free PMC article.
The diffraction of vortex Gaussian laser beams by elementary objects of micro-optics (surface micro-defects) to recognize the type of polarization (linear, circular, radial, azimuthal) of the input radiation was investigated in this paper. ...The focusing properties of mic …
The diffraction of vortex Gaussian laser beams by elementary objects of micro-optics (surface micro-defects) to recognize the type of …
Diffractive axicons in oblique illumination: analysis and experiments and comparison with elliptical axicons.
Thaning A, Jaroszewicz Z, Friberg AT. Thaning A, et al. Appl Opt. 2003 Jan 1;42(1):9-17. doi: 10.1364/ao.42.000009. Appl Opt. 2003. PMID: 12518818
Axicons in oblique illumination produce broadened focal lines, a problem, e.g., in scanning applications. ...The results are confirmed by direct diffraction simulations and by experiments. In addition we show that at a fixed angle an elliptical axicon can be …
Axicons in oblique illumination produce broadened focal lines, a problem, e.g., in scanning applications. ...The results are confirme …
Diffraction and thermal effect of a Bessel-Gaussian laser for Ag nanoparticle deposition.
Li T, Davis KO, Kumar R, Kar A. Li T, et al. Opt Express. 2022 May 23;30(11):19246-19272. doi: 10.1364/OE.455313. Opt Express. 2022. PMID: 36221708 Free article.
The Gaussian beam of a CO(2) laser source is propagated through axicon and biconvex lenses, and the resulting hollow beam is focused on the Ag paste with a hollow parabolic mirror. A Bessel-Gaussian irradiance distribution is obtained at the focal plane of the parabolic mi …
The Gaussian beam of a CO(2) laser source is propagated through axicon and biconvex lenses, and the resulting hollow beam is focused …
Fresnel axicon.
Golub I. Golub I. Opt Lett. 2006 Jun 15;31(12):1890-2. doi: 10.1364/ol.31.001890. Opt Lett. 2006. PMID: 16729105
A new optical element, a Fresnel axicon (fraxicon), is proposed. Similar to a Fresnel lens, this element consists of concentric prism-like grooves with an apex angle equal to that of a bulk axicon and whose action relies on refraction. The fraxicon is less chromatic …
A new optical element, a Fresnel axicon (fraxicon), is proposed. Similar to a Fresnel lens, this element consists of concentric prism …
Hybrid refractive-diffractive axicons for Bessel-beam multiplexing and resolution improvement.
Gorelick S, Paganin DM, Korneev D, de Marco A. Gorelick S, et al. Opt Express. 2020 Apr 13;28(8):12174-12188. doi: 10.1364/OE.391662. Opt Express. 2020. PMID: 32403716 Free article.
Optical elements rely on refraction, diffraction, or reflection for light manipulation. Fusing diffractive and refractive functions in a single element provides an extra layer of control over the wave propagation, allowing complex beam shaping through self-aligned, …
Optical elements rely on refraction, diffraction, or reflection for light manipulation. Fusing diffractive and refractive func …
Simple lens axicon.
Burvall A, Kołacz K, Jaroszewicz Z, Friberg AT. Burvall A, et al. Appl Opt. 2004 Sep 1;43(25):4838-44. doi: 10.1364/ao.43.004838. Appl Opt. 2004. PMID: 15449470
We present the design of a cemented doublet-lens axicon made from spherical surfaces only. Compared with diffractive axicons, refractive cone axicons, and earlier lens axicons with aspheric surfaces, this element is inexpensive and easy to manuf …
We present the design of a cemented doublet-lens axicon made from spherical surfaces only. Compared with diffractive axicon …
Propagation of fully and partially coherent flat-topped multi-Gaussian beams through axicons.
Thabit FM, AlKelly AA, Shukri MA. Thabit FM, et al. J Opt Soc Am A Opt Image Sci Vis. 2020 May 1;37(5):759-767. doi: 10.1364/JOSAA.386820. J Opt Soc Am A Opt Image Sci Vis. 2020. PMID: 32400708
Theoretically, we have investigated the propagation of fully and partially coherent flat-topped multi-Gaussian beams through classical and logarithmic axicons. The stationary phase method applied to the Fresnel diffraction integral for intensity distribution has led …
Theoretically, we have investigated the propagation of fully and partially coherent flat-topped multi-Gaussian beams through classical and l …
Sinusoidal-amplitude binary phase mask and its application in achieving an ultra-long optical needle.
Gao XZ, Zhao PC, Zhao JH, Sun XF, Liu JJ, Yang F, Pan Y. Gao XZ, et al. Opt Express. 2022 Jul 18;30(15):26275-26285. doi: 10.1364/OE.463393. Opt Express. 2022. PMID: 36236822 Free article.
Optical needle has become a hot research topic in recent years, due to the excellent properties and potential applications. To achieve a sub-diffraction optical needle, there are three common methods including planar diffractive lenses, reflective mirrors or axic …
Optical needle has become a hot research topic in recent years, due to the excellent properties and potential applications. To achieve a sub …
Multilevel Spiral Axicon for High-Order Bessel-Gauss Beams Generation.
Tudor R, Bulzan GA, Kusko M, Kusko C, Avramescu V, Vasilache D, Gavrila R. Tudor R, et al. Nanomaterials (Basel). 2023 Jan 31;13(3):579. doi: 10.3390/nano13030579. Nanomaterials (Basel). 2023. PMID: 36770540 Free PMC article.
This paper presents an efficient method to generate high-order Bessel-Gauss beams carrying orbital angular momentum (OAM) by using a thin and compact optical element such as a multilevel spiral axicon. This approach represents an excellent alternative for diffraction …
This paper presents an efficient method to generate high-order Bessel-Gauss beams carrying orbital angular momentum (OAM) by using a thin an …
162 results