deformable phase plate Delta 7
deformable phase plate Delta 7
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SystemAtMicroscope (1) (3)
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Delta 7 | Deformable Phase Plate

Clear aperture diameter

10 mm

Number of actuators

63

Wavefront RMS error of best flat

< 15 nm (orientation independent)

Maximum peak-to-valley of the generated wavefronts

> 8 µm

Maximum spatial frequency of the correction

7th radial order of Zernike modes

Optical transmission (VIS-NIR version)

400 nm - 2200 nm 80% at λ=800 nm (no AR coatings applied)

Laser Induced Damage Threshold (LIDT)

10 W/cm² for 10s @ 1070nm CW

Nominal operation laser power

Factory calibrated for < 100 mW CW (over full optical aperture)

Delta 7 – Deformable Phase Plate for easy adaptive optics

The Delta 7 is the latest breakthrough in adaptive optics technology. Manufactured by Phaseform, the Deformable Phase Plate (DPP) is a new kind of fully transmissive, miniaturized wavefront modulator. It delivers dynamic, real-time aberration correction and can be placed directly into an optical beam path, much like a regular lens. The DPP consists of a fluid-filled chamber enclosed by a flexible membrane that is shaped by electrostatic forces. These forces are produced by a two-dimensional array of transparent electrodes integrated within the optical aperture of the DPP. The advanced optofluidic design of the DPP ensures gravity-independent operation, enabling high-quality wavefront modulation regardless of orientation.

transmissive wavefront modulator

Setting up an adaptive optics set-up using delta 7 has never been simpler. Contrary to conventional deformable mirrors, no relay lenses are needed and  Delta 7 can be placed exactly where the aberrations need to be corrected ! For example , as we show below, in microscopy applications, Delta 7 can be directly inserted at the back pupil of the microscope objective !

delta 7 on microscope objective

Key Features of Delta 7  

Complex Wavefront Modulation: Features 63 electrodes, capable of replicating up to the 7th radial order of Zernike polynomials (>35 modes) with exceptional accuracy.

Seamless System Integration: Compact design compatible with microscope objectives, standard 30 mm cage systems, including rods, lens tubes, and post assemblies.

Precise & Hysteresis-Free Operation: Electrostatic actuation ensures a linear response, enabling open-loop wavefront control with reliability.

Exceptional Optical Performance: Active best flat with induced RMS wavefront error below λ/40 for outstanding precision.

Polarization Agnostic: Wavefront modulation remains unaffected by light polarization, ensuring optimal efficiency

Upgrade of a two-photon microscope for deep tissue imaging of single neurons in a mouse brain.
The images above were obtained by upgrading  a two-photon microscope with Delta 7 for deep tissue imaging of single neurons in a mouse brain. Courtesy of the Medical University of Innsbruck (A. Jesacher).

Delta 7 – Deformable Phase Plate for easy adaptive optics

The Delta 7 is the latest breakthrough in adaptive optics technology. Manufactured by Phaseform, the Deformable Phase Plate (DPP) is a new kind of fully transmissive, miniaturized wavefront modulator. It delivers dynamic, real-time aberration correction and can be placed directly into an optical beam path, much like a regular lens. The DPP consists of a fluid-filled chamber enclosed by a flexible membrane that is shaped by electrostatic forces. These forces are produced by a two-dimensional array of transparent electrodes integrated within the optical aperture of the DPP. The advanced optofluidic design of the DPP ensures gravity-independent operation, enabling high-quality wavefront modulation regardless of orientation.

transmissive wavefront modulator

Setting up an adaptive optics set-up using delta 7 has never been simpler. Contrary to conventional deformable mirrors, no relay lenses are needed and  Delta 7 can be placed exactly where the aberrations need to be corrected ! For example , as we show below, in microscopy applications, Delta 7 can be directly inserted at the back pupil of the microscope objective !

delta 7 on microscope objective

Key Features of Delta 7  

Complex Wavefront Modulation: Features 63 electrodes, capable of replicating up to the 7th radial order of Zernike polynomials (>35 modes) with exceptional accuracy.

Seamless System Integration: Compact design compatible with microscope objectives, standard 30 mm cage systems, including rods, lens tubes, and post assemblies.

Precise & Hysteresis-Free Operation: Electrostatic actuation ensures a linear response, enabling open-loop wavefront control with reliability.

Exceptional Optical Performance: Active best flat with induced RMS wavefront error below λ/40 for outstanding precision.

Polarization Agnostic: Wavefront modulation remains unaffected by light polarization, ensuring optimal efficiency

Upgrade of a two-photon microscope for deep tissue imaging of single neurons in a mouse brain.
The images above were obtained by upgrading  a two-photon microscope with Delta 7 for deep tissue imaging of single neurons in a mouse brain. Courtesy of the Medical University of Innsbruck (A. Jesacher).

Delta 7 Datasheet

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