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The effects of thin-film interference can also be seen in oil slicks and soap bubbles. The reflectance spectrum of a thin-film features distinct oscillations and the extrema of the spectrum can be used to calculate the thickness of the thin-film. [1] Ellipsometry is a technique that is often used to measure properties of thin films. In a ...
The Tower of Power is a 777 ft (236.8 m), 120,000 watt [1] TPO mast owned by the GMA Network located in Tandang Sora, Barangay Culiat, Quezon City.It serves as a transmitter facility for GMA's flagship stations, including DZBB-TV 7 (digital UHF 15), GTV's DWDB-TV 27, and Barangay FM's DWLS 97.1 MHz.
Millennium Transmitter (right) before renovation Millennium Tower at night in 2012. The Millennium Transmitter, also known as the ABS-CBN Tower, and provisionally called as AMBS Tower, was constructed at the corner of Mother Ignacia Street and Sgt. Esguerra Avenue, within the ABS-CBN Broadcasting Center, at the time of its construction, it was one of the tallest lattice towers in the world.
This article provides a summary description of many of the different antenna types used for radio receiving or transmitting systems. This summary article collects groups of antennas based on their electrical operation. The classification and sub-classifications below follow those typically used in most antenna engineering textbooks. [1] [2] [3 ...
A thin film is a layer of materials ranging from fractions of a nanometer to several micrometers in thickness. [1] The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications.
Thin-film optics is the branch of optics that deals with very thin structured layers of different materials. [1] In order to exhibit thin-film optics, the thickness of the layers of material must be similar to the coherence length ; for visible light it is most often observed between 200 and 1000 nm of thickness.
An interference filter, dichroic filter, or thin-film filter is an optical filter that reflects some wavelengths (colors) of light and transmits others, with almost no absorption for all wavelengths of interest.
Within the flat panel display industry TFD more often refers to thin film bi-directional diodes, also known as metal-insulator-metal (MIM) TFDs or nonlinear resistors. [1] Bi-directional MIM TFDs have very low current flow at low applied voltages , but then begin to conduct electricity above a threshold voltage, of either positive or negative ...