LightTrans

What’s new?

Generation of Non-Diffracting Bessel Beams

[May 19, 2020]
We demonstrate how to generate Bessel beams with an axicon, and, following the research work of O. Brzobohatý et al., we investigate how the round tip of the axicon may influence the resulting Bessel beam.
[May 19, 2020]

We demonstrate how to generate Bessel beams with an axicon, and, following the research work of O. Brzobohatý et al., we investigate how the round tip of the axicon may influence the resulting Bessel beam.

Nowadays, Bessel-like beams and similar kinds of non-diffracting beams are not just generated in the lab but have been put to use in different applications. To better exploit such beams, their properties must be studied and understood more deeply. As a typical example, we demonstrate how to generate Bessel beams with an axicon, and, following the research work of O. Brzobohatý et al., we investigate how the round tip of the axicon may influence the resulting Bessel beam.

We demonstrate how to generate Bessel beams with an axicon, and, following the research work of O. Brzobohatý et al., we investigate how the round tip of the axicon may influence the resulting Bessel beam.
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One Physical-Optics Platform – Many Field Solvers!

[May 14, 2020]
In this new webinar we present the mathematical toolkit that helps make fast physical optics a reality, show how this toolkit is directly reflected in the user interface, and illustrate the impact it has for the average user.
[May 14, 2020]

In this new webinar we present the mathematical toolkit that helps make fast physical optics a reality, show how this toolkit is directly reflected in the user interface, and illustrate the impact it has for the average user.

We are excited to present you insights into our software development. We are starting a webinar series and the first webinar will already take place on 27 May.
Stay tuned and register for the first one.

In order to adapt to different time zones worldwide, we will hold this webinar twice (all times CET):

27 May | 10:00 – 11:00
27 May | 16:00 – 17:00

In this new webinar we present the mathematical toolkit that helps make fast physical optics a reality, show how this toolkit is directly reflected in the user interface, and illustrate the impact it has for the average user.
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Optical Metrology with Interferometry

[April 30, 2020]
VirtualLab Fusion can help you build up various types of interferometers and include the different optical surfaces and components of the system, and even alignment mistakes like tilt and shift, in the simulation.
[April 30, 2020]

VirtualLab Fusion can help you build up various types of interferometers and include the different optical surfaces and components of the system, and even alignment mistakes like tilt and shift, in the simulation.

Optical metrology is an essential technology for precise measurement. For example, it is often used for surface testing and therefore plays an important role in quality control. VirtualLab Fusion can help you build up various types of interferometers and include the different optical surfaces and components of the system, and even alignment mistakes like tilt and shift, in the simulation. Two widely used interferometers – Mach-Zehnder and Fizeau – are demonstrated as examples.

VirtualLab Fusion can help you build up various types of interferometers and include the different optical surfaces and components of the system, and even alignment mistakes like tilt and shift, in the simulation.
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Collimation Testing with Shearing Interferometry

[April 24, 2020]
In VirtualLab Fusion we can model the multiple interaction between light and the shear plate easily with the help of the channel concept.
[April 24, 2020]

In VirtualLab Fusion we can model the multiple interaction between light and the shear plate easily with the help of the channel concept.

How well is a beam collimated? This is an essential question for many optics, especially in laser applications. Shearing interferometry is a simple and convenient way to test beam collimation quality, and we demonstrate this in VirtualLab Fusion. The key device in the interferometer is a shear plate, with high-quality flat surfaces and usually with a small wedge angle. We can model the multiple interactions between light and the shear plate easily with the help of the channel concept in VirtualLab Fusion.

In VirtualLab Fusion we can model the multiple interaction between light and the shear plate easily with the help of the channel concept.
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Construction and Modeling of a GRIN Lens

[April 09, 2020]
VirtualLab Fusion provides a fully electromagnetic modeling technology for light propagation in GRIN media. We show here an example of a GRIN lens.
[April 09, 2020]

VirtualLab Fusion provides a fully electromagnetic modeling technology for light propagation in GRIN media. We show here an example of a GRIN lens.

In contrast to a traditional optical lens, which works due to light refracting at the curved surfaces of the lens, a GRIN lens can make light focus using only flat surfaces. The flat shape and the working principle of such lenses provide advantages – convenience in mounting and even the possibility of being fused to other devices, like an optical fiber. VirtualLab Fusion provides a fully electromagnetic modeling technology for light propagation in GRIN media. We show here an example of a GRIN lens.

VirtualLab Fusion provides a fully electromagnetic modeling technology for light propagation in GRIN media. We show here an example of a GRIN lens.
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F-Theta Scanning Lens

[April 02, 2020]
In VirtualLab Fusion, we provide a scanning source for such scenarios, and with different field solvers used in connection, the performance of such scanning lens systems can be evaluated conveniently.
[April 02, 2020]

In VirtualLab Fusion, we provide a scanning source for such scenarios, and with different field solvers used in connection, the performance of such scanning lens systems can be evaluated conveniently.

F-Theta lenses are often employed in high-performance laser scanning systems. They are designed to produce focal spots whose lateral displacement depends linearly on the scanning angle, a property which is typically required in e.g. laser material processing applications. In VirtualLab Fusion, we provide a scanning source for such scenarios, and with different field solvers used in connection, the performance of such scanning lens systems can be evaluated conveniently.

In VirtualLab Fusion, we provide a scanning source for such scenarios, and with different field solvers used in connection, the performance of such scanning lens systems can be evaluated conveniently.
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LightTrans' Reaction to Coronavirus

[March 26, 2020]
The management board has decided that all business trips until the end of June will be canceled without substitution. Unfortunately, this also means that we won’t attend any exhibitions until the end of June.
[March 26, 2020]

The management board has decided that all business trips until the end of June will be canceled without substitution. Unfortunately, this also means that we won’t attend any exhibitions until the end of June.

The management board has decided that all business trips until the end of June will be canceled without substitution. Unfortunately, this also means that we won’t attend any exhibitions until the end of June.
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Chromatic Effects in Fluorescent Microscopy

[March 20, 2020]
We demonstrate the resulting chromatic effects for a selected high-NA objective lens in VirtualLab Fusion. Additionally, we compare the results of the analysis for the real objective lens with the ideal situation obtained using the Debye-Wolf integral.
[March 20, 2020]

We demonstrate the resulting chromatic effects for a selected high-NA objective lens in VirtualLab Fusion. Additionally, we compare the results of the analysis for the real objective lens with the ideal situation obtained using the Debye-Wolf integral.

Fluorescent microscopy has proven to be a very effective technology for both biological and medical applications. When constructed in a reflective configuration, both the illuminating light and the light emitted by the fluorescent sample, which have different wavelengths, pass through the same objective lens of the fluorescent microscope. We take such an example and demonstrate the resulting chromatic effects for a selected high-NA objective lens in VirtualLab Fusion. Additionally, we compare the results of the analysis for the real objective lens with the ideal situation obtained using the Debye-Wolf integral.

We demonstrate the resulting chromatic effects for a selected high-NA objective lens in VirtualLab Fusion. Additionally, we compare the results of the analysis for the real objective lens with the ideal situation obtained using the Debye-Wolf integral.
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Single-Molecule Imaging with Fourier Microscopy

[March 10, 2020]
With VirtualLab Fusion, we model a complete Fourier microscope system and use it for single-molecule imaging. Specifically, we demonstrate the influence of several physical-optics effects, including the Fresnel loss at each optical interface and the diffraction from lens apertures.
[March 10, 2020]

With VirtualLab Fusion, we model a complete Fourier microscope system and use it for single-molecule imaging. Specifically, we demonstrate the influence of several physical-optics effects, including the Fresnel loss at each optical interface and the diffraction from lens apertures.

Fourier microscopy, in contrast to traditional imaging techniques, enables the direct observation of the spatial frequency distribution. Therefore, it is nowadays widely used for e.g. surface-plasma observation, photonic-crystal imaging, and so on. With VirtualLab Fusion, we model a complete Fourier microscope system and use it for single-molecule imaging. Specifically, we demonstrate the influence of several physical-optics effects, including the Fresnel loss at each optical interface and the diffraction from lens apertures.

With VirtualLab Fusion, we model a complete Fourier microscope system and use it for single-molecule imaging. Specifically, we demonstrate the influence of several physical-optics effects, including the Fresnel loss at each optical interface and the diffraction from lens apertures.
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Thin-Element Approximation vs. FMM/RCWA

[March 04, 2020]
We selected two commonly used profiles for transmission gratings (sinusoidal and blazed), and apply TEA and the rigorous FMM/RCWA for their analysis, in order to compare the results from both methods.
[March 04, 2020]

We selected two commonly used profiles for transmission gratings (sinusoidal and blazed), and apply TEA and the rigorous FMM/RCWA for their analysis, in order to compare the results from both methods.

As a widely used method in the diffractive optics community, the thin-element approximation (TEA) turns out to be very efficient in the calculation of the diffraction efficiencies of thin diffractive elements. On the other hand, it is also known that such an approximation becomes inaccurate when e.g. the period of the diffractive grating becomes small in comparison to the wavelength. We selected two commonly used profiles for transmission gratings (sinusoidal and blazed), and apply TEA and the rigorous FMM/RCWA for their analysis, in order to compare the results from both methods.

We selected two commonly used profiles for transmission gratings (sinusoidal and blazed), and apply TEA and the rigorous FMM/RCWA for their analysis, in order to compare the results from both methods.
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