A laser processing method capable of performing fine and highly accurate processing by low energy is obtained. Accordingly, the trader can be assured of receiving updated information that are fed to the client applications at a rate that is cohesive with that client device’s processing speed. The light beam traverses the interferometer’s optical path. The operating element is slidably received in the notch. Optionally, a coat of protective or conductive paint is then applied to the top surface of the metal spray layers. Also provided are pharmaceutical compositions containing such compounds and methods for treating or ameliorating the effects of a medical condition in a subject using such compounds or pharmaceutical compositions.