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  2. Terahertz time-domain spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Terahertz_time-domain...

    In physics, terahertz time-domain spectroscopy (THz-TDS) is a spectroscopic technique in which the properties of matter are probed with short pulses of terahertz radiation. The generation and detection scheme is sensitive to the sample's effect on both the amplitude and the phase of the terahertz radiation. Fourier transform of the above pulse.

  3. Terahertz spectroscopy and technology - Wikipedia

    en.wikipedia.org/wiki/Terahertz_spectroscopy_and...

    Terahertz spectroscopy detects and controls properties of matter with electromagnetic fields that are in the frequency range between a few hundred gigahertz and several terahertz (abbreviated as THz). In many-body systems, several of the relevant states have an energy difference that matches with the energy of a THz photon. Therefore, THz ...

  4. Template:Coxeter–Dynkin diagram - Wikipedia

    en.wikipedia.org/wiki/Template:Coxeter–Dynkin...

    This template is used to display Coxeter–Dynkin diagrams (CDDs). To use the template, list the parts of the diagram from left to right, separated by vertical-bar ...

  5. Terahertz radiation - Wikipedia

    en.wikipedia.org/wiki/Terahertz_radiation

    Terahertz waves lie mostly at the far end of the infrared band, the longest ones in the microwave band. Terahertz radiation – also known as submillimeter radiation, terahertz waves, tremendously high frequency [1] (THF), T-rays, T-waves, T-light, T-lux or THz – consists of electromagnetic waves within the International Telecommunication Union-designated band of frequencies from 0.1 to 10 ...

  6. File:Direct conversion receiver diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Direct_conversion...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  7. Coherent optical module - Wikipedia

    en.wikipedia.org/wiki/Coherent_optical_module

    The technical details of coherent optical modules were proprietary for many years, but have recently attracted efforts by multi-source agreement (MSA) groups and a standards development organizations such as the Optical Internetworking Forum. Coherent optical modules can either plug into a front panel socket or an on-board socket.

  8. Carrier recovery - Wikipedia

    en.wikipedia.org/wiki/Carrier_recovery

    At the receiver, the baseband information is extracted from the incoming modulated waveform. In an ideal communications system, the carrier signal oscillators of the transmitter and receiver would be perfectly matched in frequency and phase, thereby permitting perfect coherent demodulation of the modulated baseband signal.

  9. Coherent control - Wikipedia

    en.wikipedia.org/wiki/Coherent_control

    Coherent control is a quantum mechanics-based method for controlling dynamic processes by light. The basic principle is to control quantum interference phenomena, ...