An estate agents <a href=" http://www.junior.ro/albuterol-purchase.pdf ">purchase proventil inhaler</a> The light emitted by the nanodiamonds is due to photoluminescence. The defects inside the nanodiamonds absorb photons from the second laser—not the one that is trapping the diamonds—which excites the system and changes the spin. The system then relaxes and other photons are emitted. This process is also known as optical pumping.