TY - CHAP A1 - Horsthemke, Ludwig A1 - Staake, Robert A1 - Burchard, Bernd A1 - Meijer, Jan A1 - Bischoff, Christian A1 - Glösekötter, Peter T1 - Highly Sensitive Compact Room Temperature Quantum Scalar Magnetormeter T2 - SMSI 2020 N2 - Magnetometry with nitrogen–vacancy (NV) defects in diamond has been extensively stud-ied in the past [1]. While most approaches in-clude the use of microwaves (MW) for the de-tection of electron spin resonance, only few investigate the sensitivity of the photolumines-cence (PL) from NV centers to an external magnetic field without MW [2, 3, 4]. This work aims to utilize this effect to build a highly sensi-tive and compact room temperature magne-tometer. The avoidance of MW serves the re-duction of production costs and allows a com-mercialization at the current patent situation. KW - Highly Sensitive Y1 - 2020 U6 - http://dx.doi.org/10.5162/SMSI2020/A1.4 SP - 47 EP - 48 ER - TY - CHAP A1 - Horsthemke, Ludwig A1 - Bischoff, Christian A1 - Glösekötter, Peter A1 - Burchard, Bernd A1 - Staacke, Robert A1 - Meijer, Jan T1 - All optical readout scheme for photoluminescence based magnetic field sensors T2 - 2020 IEEE Sensors, Rotterdam, Netherlands N2 - An improvement on a concept for all optical mag- netometry using nitrogen vacancies in diamond is presented. The concept is based on the fluorescence attenuation of optically pumped nitrogen vacancies by magnetic fields up to ≈ 50 mT. The attenuation is registered by modulating the pumping power to generate a constant signal at a photodetector. A sensitivity of 2.6μT/√Hz at a sampling frequency of 500 Hz is achieved. KW - photoluminescence based magnetic field sensors Y1 - 2020 U6 - http://dx.doi.org/10.1109/SENSORS47125.2020.9278923 SP - 1 EP - 3 ER -