Virtual experi­ence of the Quantum Sensing Appli­ca­tion Laboratory

Experi­ence the great innova­tion poten­tial of quantum sensing for indus­try and society on a virtual tour of the Appli­ca­tion Lab and disco­ver the various appli­ca­tion scena­rios for quantum sensing. 

We are very interes­ted in your questi­ons and look forward to your project ideas.

Visit the Virtual Appli­ca­tion Labora­tory

New possi­bi­li­ties for applications

Quantum sensing enables micro­sco­pic imaging of magne­tic fields. It also allows the unique magne­tic finger­print of objects to be measu­red. This opens up funda­men­tally new appli­ca­ti­ons for various indus­tries such as micro- and nanoelec­tro­nics, aerospace, materi­als testing, biome­di­cine or broad­band commu­ni­ca­tion, radar and telemetry. 

Quantum Sensing Appli­ca­tion Laboratory

Evaluate quantum magne­to­me­ters for your speci­fic requirements.

 

If you are interes­ted in testing quantum magne­to­me­ters for your speci­fic appli­ca­ti­ons, please contact us.

 

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Our services

Several quantum magne­to­me­ters are available in the Quantum Sensing Appli­ca­tion Labora­tory at Fraunhofer IAF in Freiburg. Interes­ted parties from science and indus­try are invited to evaluate the innova­tive poten­tial of quantum sensors for their speci­fic requi­re­ments with our state-of-the-art sensors and fully imaging systems:

  • Research into new appli­ca­ti­ons for quantum sensors and magne­tic field sensors 

  • Valida­tion of samples and measurements 

  • Testing and inspec­tion of components 

  • Experi­men­tal charac­te­riza­tion by quantum magne­to­me­try and modeling of materials

Drei Forschende im betrachten im Labor einen optischen Aufbau.
© Fraunhofer IAF

Quantum magne­to­me­ters in the Appli­ca­tion Labora­tory at Fraunhofer IAF

Various quantum magne­to­me­ters are available—all based on diamond.

Wide-field magne­to­me­ter

The wide-field magne­to­me­ter uses a diamond plate with a multi­ple nitro­gen-vacancy centers. It measu­res magne­tic fields over a large sample area in a very short time and is there­fore suita­ble for fast measu­re­ments in indus­trial appli­ca­ti­ons. The system can be used for the charac­te­riza­tion and optimiza­tion of ferro­ma­gne­tic materi­als, and is also very well suited for appli­ca­ti­ons in biome­di­cine and medical techno­logy. Organic samples can be exami­ned non-destruc­tively and with imaging. 

To the Appli­ca­tion Lab


Techni­cal specifications

  • Sensi­ti­vity: $${10}\:\mu{T}\diagup\:\sqrt{Hz}$$
  • Resolu­tion: ± 1 µm
  • Measu­ring area: 40 x 40 µm2 — 1 x 1 mm2
  • Measu­ring time: seconds to minutes
  • Measu­ring method: ODMR, Iso‑B, Quench, pulsed
  • Other: Quanti­ta­tive, calibra­tion free, fast, room tempe­ra­ture, no magne­tic field shiel­ding, robust 

Scanning probe quantum magnetometer

High-resolu­tion scanning probe quantum magne­to­me­ters use diamond tips with a single nitro­gen-vacancy center. This makes it possi­ble for the first time to measure magne­tic field distri­bu­ti­ons at the atomic level that are not acces­si­ble using previously available methods. For example, the current flows of micro- and nanoelec­tro­nic circuits can be displayed with high resolu­tion, which is of great benefit for error analysis.

To the Appli­ca­tion Lab


Techni­cal specifications

  • Sensi­ti­vity: $${1.3}-{2}\:\mu{T}\diagup\:\sqrt{Hz}$$
  • Resolu­tion: ≈ 35 nm
  • Measu­ring area: 85 x 85 x 15 µm — 100 x 100 x 15 µm
  • Measu­ring time: minutes to hours
  • Measu­ring method: ODMR, Iso‑B, Quench, pulsed, AFM, MOKE
  • Other: room tempe­ra­ture, no magne­tic field shielding

Laser thres­hold magnetometer

Volumes of NV-doped diamond are used for laser thres­hold magne­to­me­try. This is a new research approach world­wide, in which a material with an optically detec­ta­ble magne­tic resonance is used as a laser medium. Due to its material proper­ties, diamond with a high density of NV centers is parti­cu­larly suita­ble for use as a laser medium. 

Theore­ti­cally, higher signals and a higher contrast can be achie­ved, which leads to much more precise measu­re­ment results. Fraunhofer IAF benefits from the synergy of the three core compe­ten­cies of diamond growth, optoelec­tro­nics or laser techno­logy and high-frequency electro­nics. The laser thres­hold magne­to­me­ter will be used to measure the smallest magne­tic fields, such as those genera­ted in neuro­nal networks or by brain waves, thus opening new doors in medical diagnostics.

To the Appli­ca­tion Lab


Techni­cal specifications

  • Sensi­ti­vity: 2 fT/sqrt(Hz)
  • Resolu­tion: ~ 1 mm
  • Measu­ring time: 1 ms – 10 s
  • Magne­tic signal: DC – AC (~ 1 MHz, frequency selective)
  • Other: Room tempe­ra­ture, background fields, large dynamic range