NEWS

Enhancements of 3-D Grating Simulation

(August 27, 2010)

The simulation of 3-D grating structures is being considerably enhanced in the forthcoming version of VirtualLab™. Real 3-D grating structures are used more and more extensively for the design of optical components. The rigorous simulation techniques provided by VirtualLab™ give an insight to the op...

Get in touch at SPIE Optics + Photonics, San Diego, CA, USA!

(July 13, 2010)

We offer several opportunities to learn more about VirtualLab™ at SPIE Optics + Photonics, San Diego, CA, USA, starting August 1, 2010. VirtualLab™ is being presented at the SPIE show at booth 628 of our distributor in the United States, Jenoptik Optical Systems, Inc. Further a free seminar on &quot...

VirtualLab™ 4.8 Released

(July 09, 2010)

VirtualLab™ and VirtualLab™ Advanced 4.8 have been released. VirtualLab™ 4.8 extends the flexibility of 2-D grating simulations. Using so called stacks, the period of the structure can be defined by sequences of optical interfaces, including grating, conical, aspherical, sampled and programmable int...

Modeling of optical systems with micro and macro structured optical components

Interferogram of a polychromatic spherical wave and a vortex wave.

The VirtualLab™ Starter Toolbox enables the simulation of laser optics, micro optical systems, diffractive optics, interferometers, imaging and illumination systems. Optical systems may contain refractive, diffractive, hybrid, Fresnel and GRIN lenses, diffractive optical elements, diffusers, beam shapers, diffractive beam splitters, computer generated holograms, phase plates, elements with free form surfaces and micro lens arrays.

The light propagation through all of these components can be modeled using different propagation models from geometrical optics to physical optics, all of which run on a single software platform. Propagation models can handle coherent monochromatic light, polychromatic light, spatial and temporal partially coherent light as well as ultra short pulses.

The unique customization features of VirtualLab™ enable the simulation of user defined surface profiles, light sources, transmissions and index modulated media just by entering a formula. In addition various import filters allow to import surface and laser data from other software and measurement devices.

Your Benefit

Hybrid surface of bifocal lens.
  • Modeling of lenses, micro and diffractive optical components on one software platform.
  • Optical modeling from geometrical to physical optics including diffraction, interference, aberrations, polarization and vectorial effects.
  • Simulation of temporal and spatial partially coherent light sources as for example LED’s, Excimer lasers and multimode lasers.
  • Modeling of ultra short pulses.
  • Components with customized surface profiles and index modulated media.
  • Fast and easy optical modeling by the innovative Light Path Diagram.

Selected Features

Simulation of high NA laser and imaging systems. The Starter Toolbox enables the investigation of paraxial and non-paraxial laser and imaging systems including diffraction effects, interference effects, aberrations, polarization and vectorial effects. Lens data can be imported from Zemax. The toolbox allows for example the evaluation of  the fiber coupling efficiency, beam parameters, PSF, MTF and power density in focal regions.

Simulation of micro and diffractive optical components. You can analyze the optical effects of diffractive, hybrid, Fresnel and GRIN lenses, diffractive optical elements, diffusers, beam shapers, diffractive beam splitters, computer generated holograms, phase plates and micro lens arrays. Simulations of light propagation include diffraction, interference, stray light, efficiency, uniformity, signal-to-noise ratio (SNR) and zero order intensity. Measured data of micro structured height profiles can be imported  from ASCII and bitmap files into VirtualLab™.

Modeling of ultra short pulses. VirtualLab™ enables the modeling and propagation of ultrashort pulses through laser systems. The propagation includes diffraction effects, interference effects,  aberrations, polarization and vectorial effects. The pulse shape can be visualized depending on the lateral laser beam position.

Simulation of temporal and spatial partially coherent light. Several real light sources, as for example, LED’s, Excimer lasers, multimode lasers, thermal sources generate temporal and spatial partially coherent light. The coherence properties of real light distributions can be included in simulations which is of importance especially for optical systems whose optical functions are based on diffraction and interference effects.

Far field intensity pattern of a diffractive diffuser illuminated by a monochromatic LED.

Tolerance analysis. The powerful Parameter Run of VirtualLab™ allows the variation of system parameters and the investigation of their optical effects. The Starter Toolbox enables a single parameter variation, a multidimensional scanning parameter variation and a random (Monte-Carlo) parameter variation.

Customized surface profiles, light sources, transmissions and index modulated media. Programmable interface, light source, transmission and index modulated medium allow customizing optical components just by entering a formula. No external DLL or development environment is required. This enables for example the fast modeling of components with user defined freeform diffractive, refractive or hybrid surface profiles.