![Demonstrator eines Laserschwellen-Magnetometers. Die Perspektive zeigt die Kavität, in der die Verstärkung und magnetfeldabhängige stimulierte Emission gemessen wurden. © Fraunhofer IAF / Demonstrator of a laser threshold magnetometer. The perspective shows the cavity where the scientists measured the amplification and magnetic-field-dependent stimulated emission. © Fraunhofer IAF Demonstrator eines Laserschwellen-Magnetometers. Die Perspektive zeigt die Kavität, in der die Verstärkung und magnetfeldabhängige stimulierte Emission gemessen wurden. © Fraunhofer IAF / Demonstrator of a laser threshold magnetometer. The perspective shows the cavity where the scientists measured the amplification and magnetic-field-dependent stimulated emission. © Fraunhofer IAF](/uploads/images/_scale/dilamag_fraunhoferiaf_hahl_169_626x352.jpg)
![Die Messung zeigt den Kontrastrekord von knapp 33 Prozent bei stimulierter magnetfeldabhängiger Emission (blau) im Vergleich zu spontaner Emission (rot). © Fraunhofer IAF / The measurement shows the contrast record of almost 33 percent for stimulated magnetic field-dependent emission (blue) compared to spontaneous emission (red). © Fraunhofer IAF Die Messung zeigt den Kontrastrekord von knapp 33 Prozent bei stimulierter magnetfeldabhängiger Emission (blau) im Vergleich zu spontaner Emission (rot). © Fraunhofer IAF / The measurement shows the contrast record of almost 33 percent for stimulated magnetic field-dependent emission (blue) compared to spontaneous emission (red). © Fraunhofer IAF](/uploads/images/_scale/grafiklaserschwellenmagnetometriefraunhoferiaf_169_626x352.jpg)
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- Science
Milestone in quantum sensor technology
World's first measurement of magnetic-field-dependent stimulated emission
In medical care, magnetic fields of heart and brain activity are measured to detect diseases at an early stage. To measure even the smallest magnetic fields, researchers at Fraunhofer IAF are working on a new approach: diamond-based laser threshold magnetometry. The idea is to use diamond with a hig…