Microwave techniques encompass experimental and analytical methods that exploit electromagnetic radiation in the microwave frequency range (typically 0.3–300 GHz) for material characterization, signal manipulation, and device evaluation. These techniques include microwave spectroscopy, vector network analysis of scattering parameters, cavity perturbation methods, and time-domain reflectometry. They are used to determine complex permittivity, permeability, dielectric loss, and conductivity, as well as to study resonant modes, dispersion, and non-linear responses in materials and components. Microwave techniques are fundamental in characterizing high-frequency circuits, antennas, metamaterials, superconducting devices, and in probing condensed matter systems under controlled temperature, magnetic field, or pressure conditions.
Optical frequency combs—laser sources that emit evenly spaced colors of light—are foundational, ubiquitous tools for precision measurement, found in optical clocks, gas-sensing spectrometers, and instruments that detect the ...
Optics & Photonics
Mar 16, 2026
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The electronic and magnetic properties of two-dimensional materials both have strong potential for technological applications. Researchers have long assumed that they are distinct phenomena, but Illinois Grainger engineers ...
Nanophysics
Mar 8, 2026
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199
A research team affiliated with UNIST has unveiled an innovative, cost-effective biosensor capable of being washed and reused, paving the way for more accessible liquid biopsy diagnostics. This new platform aims to reduce ...
Bio & Medicine
Feb 26, 2026
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10
One intriguing method that could be used to form the qubits needed for quantum computers involves electrons hovering above liquid helium. But it wasn't clear how data in this form could be read easily.
Quantum Physics
Jan 17, 2026
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133
When quantum particles work together, they can produce signals far stronger than any one particle could generate alone. This collective phenomenon, called superradiance, is a powerful example of cooperation at the quantum ...
General Physics
Jan 2, 2026
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153
Scientists have developed a new approach to correcting common quantum computing errors, which could pave the way for more reliable systems.
A new method of using microwave vacuum drying can create crispy beet snacks—a potential alternative to traditional drying or frying that could preserve nutrients while yielding shelf-stable products.
Biotechnology
Dec 17, 2025
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EPFL researchers have developed a method to calibrate electron spectrometers with extreme accuracy by linking microwave, optical, and free-electron frequencies.
Optics & Photonics
Oct 29, 2025
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49
Recent advances in electronics and optics have opened new possibilities for terahertz (THz) waves—an invisible type of light that falls between infrared light and microwaves on the spectrum. The use of THz scattering for ...
Optics & Photonics
Jun 9, 2025
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26
Researchers have published the demonstration of a fully-integrated single-chip microwave photonics system, combining optical and microwave signal processing on a single silicon chip.
Optics & Photonics
Jun 5, 2025
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