Terahertz comb
Web1 May 2024 · The electrically-pumped semiconductor-based terahertz quantum cascade laser (QCL) featured by high output power, narrow far-field beam divergence, broad … WebIntroduction. Terahertz (THz) frequency quantum cascade lasers (QCLs) are compact and powerful solid-state semiconductor sources that deliver up to watt-level pulses of radiation in the 1.2–5.6 THz range [].Furthermore, they can be engineered to have a very broad gain bandwidth, enabling the spontaneous formation of THz frequency combs [2-5], which …
Terahertz comb
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Web12 Apr 2024 · Here, the frequency comb directly emitted from the free-electron radiation is demonstrated by simultaneously exciting a series of modes with equidistant spectral … WebIn this paper, a stable optical frequency comb generation scheme based on Mach-Zehnder modulator (MZM) is designed. The key to this scheme is to determine the type of modulator, and then through the analysis of modulation characteristics and theoretical calculation, the driving condition of the flattest optical frequency comb can be achieved.
WebPrecise Terahertz frequency measurement based on an opto-electronic terahertz comb Abstract: We propose and experimentally demonstrate a THz frequency measurement system based on an opto-electronic THz-comb, and the proof-of-concept frequency measurement in the range of 240-381 GHz at a precision better than $10^{-12}$ is achieved. Web21 Apr 2015 · The generation and detection of a decade-spanning terahertz (THz) frequency comb is reported using two Ti:sapphire femtosecond laser oscillators and asynchronous …
Web24 Aug 2024 · The optical frequency comb generation unit is provided with a phase control unit that controls the repetition frequency and offset frequency of the optical frequency comb. ... Terahertz wave generation device and method for generating terahertz wave EP1724550A1 (en) 2006-11-22: Interferometer and shape measuring method ... Web22 Apr 2015 · This requires a precise source of terahertz waves, in addition to a sensitive detector, and the terahertz frequency comb is ideal for making such measurements in the …
WebExperienced researcher with a demonstrated history of working in the academia and industry. Skilled in photonics, photonic integration technologies, optoelectronics, semiconductor lasers, millimeter and terahertz, electronc-photonic test, manufacturing of integrated photonics. Lees meer over onder meer de werkervaring, opleiding, connecties …
WebHis research in Spectroscopy intersects with topics in Absorption, Resonator and Terahertz radiation. He has researched Frequency comb in several fields, including Atomic physics, Vernier scale, Bandwidth and Rotational–vibrational spectroscopy. ... Absolute spectroscopy near 7.8 μm with a comb-locked extended-cavity quantum-cascade-laser ... thc turk stWebDual-Terahertz-Comb Spectrometer on CMOS for Rapid, Wide-Range Gas Detection With Absolute Specificity C. Wang and R. Han IEEE Journal of Solid-State Circuits (JSSC), vol. 56, no. 12, Dec. 2024. (Invited) A Fully Integrated Broadband Sub-mmWave Chip-to … thc triangleWeb9 Nov 2024 · 2 1 Abstract 2 Optical frequency combs in the terahertz frequency range are long-awaited frequency standards for 3 spectroscopy of molecules and high-speed communications. However, a terahertz frequency comb 4 based on a compact, efficient and room-temperature-operating device remains unavailable especially 5 in the frequency … thc twitchWeb1 Jun 2015 · Single- and multichannel Terahertz (THz) wireless signals are generated using heterodyne mixing of modulated single or multiple carriers with one unmodulated optical tone spaced by about 200 GHz. The frequency stability and the phase noise of the gain switched comb laser are evaluated against free-running lasers. thc udenhoutWeb22 Feb 2024 · The first comb region, named OFC, is characterized by fundamental combs and corresponds to the values of the normalized bias current between 1.15 and 1.6; the second comb region, named HFC, is characterized by self-starting harmonic combs, with the interesting conclusion that all the ingredients for the generation of these regimes are … thc tylenolhttp://www.cas.ac.cn/syky/202404/t20240411_4883752.shtml thcudacheck is undefinedWeb11 May 2014 · Frequency combs based on terahertz quantum cascade lasers, which combine the high power of lasers with the broadband capabilities of pulsed sources, are … Nature Photonics offers a unique mix of news and reviews alongside top-quality … The addition of a strong coupling layer allows polariton-based emission from red … thc twin cities