Interferometry and Diffractive Elements

One focus is in the area of mold testing optical surfaces, especially of aspheres. Computer-Generated Holograms (CGH) can be used for this purpose which are designed and fabricated at ITO. In addition, flexible measurement methods are examined, that are able to supplement or replace the static null test. In addition to CGHs for interferometry we develop and fabricate diffractive elements and micro-optics for other Applications, such as UV measurement systems, beam shaping tasks and wavefront sensors.

• Laboratory Equipment

• Tilted Wave Interferometer (TWI)
• VCSEL Integrated Beam Shaping
• ITN-GREAT
• Subwell

• High Frequency Axicon Structures
• Optical incremental rotary encoder
• Optical incremental rotary encoder in lowcost design
• Design of diffractive elements based on simulation tools
• New Keyhole UV-Optics for Engine Diagnostics