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Related Concept Videos

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The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
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Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
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Related Experiment Video

Updated: May 7, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
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Terahertz wireless communications based on photonics technologies.

Tadao Nagatsuma, Shogo Horiguchi, Yusuke Minamikata

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    |October 10, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Terahertz (THz) waves offer ultra-broadband wireless communication potential. Photonics integration enhances data rates and merges wired and wireless networks for future high-speed systems.

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    Area of Science:

    • Radio science and engineering
    • Optical communications
    • Wireless networking

    Background:

    • Growing interest in terahertz (THz) wave applications for broadband wireless communications.
    • Exploration of frequencies above 275 GHz due to potential for extremely large bandwidths.
    • Lack of current allocation for these bands presents an opportunity for new services.

    Purpose of the Study:

    • To review advancements in THz wireless communications.
    • To highlight the role of telecom-based photonics technologies.
    • To discuss the potential for achieving data rates up to 100 Gbit/s.

    Main Methods:

    • Integration of photonics technologies for signal generation, modulation, and detection.
    • Leveraging telecom infrastructure for THz systems.
    • Review of recent research progress in the field.

    Main Results:

    • Photonics enables enhanced bandwidth and data rates in THz systems.
    • Effective combination of fiber-optic (wired) and wireless networks is achievable.
    • Progress towards realizing 100 Gbit/s data rates in THz wireless communication.

    Conclusions:

    • Photonics-based technologies are crucial for advancing THz wireless communications.
    • Ultra-broadband communication at 100 Gbit/s is a feasible goal.
    • Synergy between wired and wireless networks is enhanced through THz and photonics.