Disclosed is an optical frequency controlling device for ultra-dense wavelength-division-multiplexed optical channels in which center frequencies of optical channels are aligned. According to an embodiment of the invention, a conductive film is formed on a conductive plug connected to an active region of a semiconductor substrate, and on an interlayer dielectric film formed around the conductive plug. The terminal request is forwarded to the TGW through a tunnel from a tunnel endpoint located below the TGW. A 3D image generator generates a 3D panoramic image, when the three-dimensional panoramic image is viewed in a specified line of sight. A compound having the following structure is disclosed.