Laser Frequency Combs: Graphene‐Coupled Terahertz Semiconductor Lasers for Enhanced Passive Frequency Comb Operation (Adv. Sci. 20/2019)
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Science"
DOI: 10.1002/advs.201970120
Abstract: In article number https://doi.org/10.1002/advs.201900460, Hua Li, Juncheng Cao, Kai Zhang, Heping Zeng, and co‐workers report a graphene‐based approach for enhanced passive frequency comb operation and pulse generation in terahertz semiconductor lasers. The saturable absorption and… read more here.
Keywords: frequency; enhanced passive; frequency comb; comb operation ... See more keywords
Pump condition dependent Kerr frequency comb generation in mid-infrared
Sign Up to like & getrecommendations! Published in 2019 at "Results in physics"
DOI: 10.1016/j.rinp.2019.102789
Abstract: Abstract We propose and simulate the mid-infrared (MIR) frequency comb generation based on the Kerr nonlinear effect in a silicon microring resonator (MRR). The MRR is formed by the suspended ridge waveguides which are designed… read more here.
Keywords: pump; frequency; frequency comb; comb generation ... See more keywords
High Dynamic Range, Heterogeneous, Terahertz Quantum Cascade Lasers Featuring Thermally Tunable Frequency Comb Operation over a Broad Current Range
Sign Up to like & getrecommendations! Published in 2018 at "ACS Photonics"
DOI: 10.1021/acsphotonics.8b01483
Abstract: We report on the engineering of broadband quantum cascade lasers (QCLs) emitting at Terahertz (THz) frequencies, which exploit a heterogeneous active region scheme and have a current density dynamic range (Jdr) of 3.2, significantly larger… read more here.
Keywords: frequency comb; quantum cascade; dynamic range; range ... See more keywords
Single ion fluorescence excited with a single mode of an UV frequency comb
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-00067-9
Abstract: Optical frequency combs have revolutionized the measurement of optical frequencies and improved the precision of spectroscopic experiments. Besides their importance as a frequency-measuring ruler, the frequency combs themselves can excite target transitions (direct frequency comb… read more here.
Keywords: direct frequency; frequency; spectroscopy; frequency comb ... See more keywords
Room temperature terahertz semiconductor frequency comb
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-10395-7
Abstract: A terahertz (THz) frequency comb capable of high-resolution measurement will significantly advance THz technology application in spectroscopy, metrology and sensing. The recently developed cryogenic-cooled THz quantum cascade laser (QCL) comb has exhibited great potentials with… read more here.
Keywords: thz; room temperature; spectroscopy; frequency comb ... See more keywords
A six-octave optical frequency comb from a scalable few-cycle erbium fibre laser
Sign Up to like & getrecommendations! Published in 2020 at "Nature Photonics"
DOI: 10.1038/s41566-021-00778-y
Abstract: A compact and robust coherent laser light source that provides spectral coverage from the ultraviolet to infrared is desirable for numerous applications, including heterodyne super resolution imaging[1], broadband infrared microscopy[2], protein structure determination[3], and standoff… read more here.
Keywords: microscopy; comb; spectroscopy; frequency comb ... See more keywords
Realisation of the metre by using a femtosecond laser frequency comb: applications in optical frequency metrology
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Metrology and Quality Engineering"
DOI: 10.1051/ijmqe/2017008
Abstract: The appearance of the frequency comb technology, awarded the Nobel Prize in Physics 2005, has enormously revolutionized the metrology of optical frequencies, eliminating the need for complicated frequency chains. By direct linking to the unit… read more here.
Keywords: frequency; laser frequency; using femtosecond; frequency comb ... See more keywords
Frequency-comb response of a parametrically driven Duffing oscillator to a small added ac excitation
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Physics"
DOI: 10.1063/5.0029104
Abstract: Here we present a one-degree-of-freedom model of a nonlinear parametrically-driven resonator in the presence of a small added ac signal that has spectral responses similar to a frequency comb. The proposed nonlinear resonator has a… read more here.
Keywords: response; frequency; parametrically driven; small added ... See more keywords
Creation of ultracold molecules within the lifetime scale by direct implementation of an optical frequency comb
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2018.1454521
Abstract: Abstract A method is proposed to create molecules in the ultracold state from the Feshbach molecules by stepwise adiabatic passage using an optical frequency comb without losses due to decoherence. An emphasis is made on… read more here.
Keywords: state; creation; frequency comb; optical frequency ... See more keywords
Optical storage for 0.53 s in a solid-state atomic frequency comb memory using dynamical decoupling
Sign Up to like & getrecommendations! Published in 2020 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ab8aac
Abstract: Quantum memories with long storage times are key elements in long-distance quantum networks. The atomic frequency comb (AFC) memory in particular has shown great promise to fulfill this role, having demonstrated multimode capacity and spin-photon… read more here.
Keywords: storage; spin wave; atomic frequency; frequency comb ... See more keywords
Theoretical analysis of a mid-infrared Kerr frequency comb in a graphene-on-silicon micro-resonator
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/acd5bb
Abstract: Mid-infrared (Mid-IR) Kerr frequency combs have great application potential in sensing and spectroscopy. To generate a Kerr frequency comb, a continuous-wave, wavelength-tunable, narrow-linewidth, low-noise laser is normally utilized to pump a high-nonlinearity micro-resonator to emit… read more here.
Keywords: kerr frequency; mid; frequency; micro resonator ... See more keywords