LightTrans

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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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Multi-Parameter Sweep

[February 21, 2020]
VirtualLab Fusion provides various tools to make simulation workflows easier. A very important one among them is the Parameter Run, which sweeps over different value ranges for multiple parameters in an optical setup automatically.
[February 21, 2020]

VirtualLab Fusion provides various tools to make simulation workflows easier. A very important one among them is the Parameter Run, which sweeps over different value ranges for multiple parameters in an optical setup automatically.

VirtualLab Fusion provides various tools to make simulation workflows easier. A very important one among them is the Parameter Run, which sweeps over different value ranges for multiple parameters in an optical setup automatically. You can choose any parameter to vary, either physical values or numerical parameters, and check their influence on the result. Especially for the case of multiple parameters, different configuration modes of the Parameter Run are available: check all possible parameter combinations using the scanning mode; define a specific combination in the programmable/standard mode, or in a random manner, as the need may arise.

VirtualLab Fusion provides various tools to make simulation workflows easier. A very important one among them is the Parameter Run, which sweeps over different value ranges for multiple parameters in an optical setup automatically.
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Passive Parity-Time Grating

[February 13, 2020]
We construct a passive parity-time grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.
[February 13, 2020]

We construct a passive parity-time grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.

Nowadays, many quantum-mechanical effects can be demonstrated with equivalent optical systems. As an example, a passive parity-time (PT) grating with separate modulation of the real and imaginary parts of the refractive index has been used to study the non-Hermitian parity-time symmetry. We construct such a passive PT grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.

We construct a passive parity-time grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.
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Fundamental Diffraction Effects

[February 07, 2020]
Diffraction is a very representative phenomenon that shows the wave nature of light. We demonstrate two typical fundamental effects in VirtualLab Fusion: the diffraction caused by aperture truncation and the diffraction due to wavefront aberration.
[February 07, 2020]

Diffraction is a very representative phenomenon that shows the wave nature of light. We demonstrate two typical fundamental effects in VirtualLab Fusion: the diffraction caused by aperture truncation and the diffraction due to wavefront aberration.

Diffraction is a very representative phenomenon that shows the wave nature of light. It explains the behavior of light in the region of a geometric shadow. To take diffraction into consideration is often of concern in modern optics, which is beyond the scope of a pure geometric optics approach. We demonstrate two typical fundamental effects in VirtualLab Fusion: the diffraction caused by aperture truncation and the diffraction due to wavefront aberration.

Diffraction is a very representative phenomenon that shows the wave nature of light. We demonstrate two typical fundamental effects in VirtualLab Fusion: the diffraction caused by aperture truncation and the diffraction due to wavefront aberration.
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Intraocular Diffractive Lens

[January 30, 2020]
We show how to import an intraocular diffractive lens design from Zemax OpticStudio® into VirtualLab Fusion.
[January 30, 2020]

We show how to import an intraocular diffractive lens design from Zemax OpticStudio® into VirtualLab Fusion.

Diffractive optics has become an indispensable technology in many fields to the point where nowadays it is applied in medical applications as well. One example in this field is the intraocular diffractive lens, which is implanted in the eye for the treatment of cataracts or myopia. The diffractive lens, together with the original human eye structures, makes a hybrid lens system. With VirtualLab Fusion, we show how to model and design such systems, particularly with the workflow that supports the import of Binary 2 surfaces from Zemax OpticStudio®.

We show how to import an intraocular diffractive lens design from Zemax OpticStudio® into VirtualLab Fusion.
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Meet LightTrans at Photonics West and VIPO–Symposium 2020

[January 23, 2020]
This is a great chance for you to meet our technical experts and sales representatives for a discussion about the various application possibilities of the Fast Physical Optics Software VirtualLab Fusion.
[January 23, 2020]

This is a great chance for you to meet our technical experts and sales representatives for a discussion about the various application possibilities of the Fast Physical Optics Software VirtualLab Fusion.

Photonics West, San Francisco, USA | 4 – 6 February

At Photonics West you can participate in LightTrans events in addition to the opportunity to meet our technical experts and sales representatives for a discussion directly at our booth.

VIPO–Symposium, Weimar, GER | 30 January

During the VIPOSeminar you can attend our talk and gain deeper insights about laser resonators in VirtualLab Fusion.

This is a great chance for you to meet our technical experts and sales representatives for a discussion about the various application possibilities of the Fast Physical Optics Software VirtualLab Fusion.
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Resonant Waveguide Grating

[January 17, 2020]
With the Fourier modal method (FMM, or RCWA) in VirtualLab Fusion, we analyze the response of such gratings.
[January 17, 2020]

With the Fourier modal method (FMM, or RCWA) in VirtualLab Fusion, we analyze the response of such gratings.

A resonant waveguide grating, which is made up of a thin waveguide film in contact with a grating, shows great potential in different applications due to its high optical tunability. With the Fourier modal method (FMM, or RCWA) in VirtualLab Fusion, we analyze the response of such gratings. In the example below, the parameter coupling feature is used to help define the parameters under investigation in a relative manner. Furthermore, the resonant modes within the grating structures are computed as well to study the working principle of such devices.  

With the Fourier modal method (FMM, or RCWA) in VirtualLab Fusion, we analyze the response of such gratings.
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