ACTOPROBE LLC designs, manufactures and sells custom optical Spectroscopy/Microscopy Instruments for conventional Atomic Force Microscopy (AFM) to do single molecular spectroscopy of biomedical specimens and compound semiconductor material & devices. We do not sell you a new AFM! We provide you with an accessory to your existing AFM to do optical microscopy and spectroscopy on single molecular level. Our AFM confocal spectroscopy instruments are the most cost effective solution to achieve optical spectroscopy on nano scale. They cost up to 50 times less than AFM microscopy–spectroscopy systems with similar characteristics. You do not need to buy a new AFM. You just purchase from us an addition to your existing AFM to do optical microscopy and spectroscopy.