Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313366874> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W4313366874 abstract "We have detected subterahertz spectral lines in the emission of free-running GaAs/AlGaAs quantum cascade lasers (QCLs) operating around 3 THz. We have found that the power W(fd) of an individual sub-THz line at the frequency fd is directly proportional to a power product W(fi) × W(fk) of the corresponding pair of THz lines having the frequency difference fi − fk = fd. The established one-to-one correspondence of each sub-THz line to pair combinations of THz lines proves the nonlinear mechanism of difference-frequency generation (DFG) in the QCL active region. The conversion efficiencies W(fi − fk)/[W(fi) × W(fk)] estimated from the experimental data are about 4 × 10−3 and 5 × 10−5 W−1 for the sub-THz lines found at 132 and 310 GHz, correspondingly. Considering nonlinear polarization of QCL active regions as the reason for DFG, we have evaluated the following values of the second-order nonlinear susceptibility χ(2)(132 GHz) ≅ 7 × 105 pm/V and χ(2)(310 GHz) ≅ 4 × 104 pm/V from the experimental data. The obtained results pave the way for the use of THz QCLs as sources of sub-THz radiation." @default.
- W4313366874 created "2023-01-06" @default.
- W4313366874 creator A5000450890 @default.
- W4313366874 creator A5028229851 @default.
- W4313366874 creator A5030313771 @default.
- W4313366874 creator A5066761184 @default.
- W4313366874 creator A5070987650 @default.
- W4313366874 date "2022-12-26" @default.
- W4313366874 modified "2023-09-29" @default.
- W4313366874 title "Subterahertz difference-frequency generation in terahertz quantum cascade lasers" @default.
- W4313366874 cites W1978662647 @default.
- W4313366874 cites W1981704974 @default.
- W4313366874 cites W1981862646 @default.
- W4313366874 cites W1997239010 @default.
- W4313366874 cites W2009465374 @default.
- W4313366874 cites W2047273150 @default.
- W4313366874 cites W2078700897 @default.
- W4313366874 cites W2331325417 @default.
- W4313366874 cites W2566706182 @default.
- W4313366874 cites W2567862405 @default.
- W4313366874 cites W2579606694 @default.
- W4313366874 cites W2941748599 @default.
- W4313366874 cites W2946727145 @default.
- W4313366874 cites W2990574469 @default.
- W4313366874 cites W3031054393 @default.
- W4313366874 cites W3097671271 @default.
- W4313366874 cites W3135786493 @default.
- W4313366874 cites W3152070739 @default.
- W4313366874 cites W4205842317 @default.
- W4313366874 cites W4213168521 @default.
- W4313366874 doi "https://doi.org/10.1063/5.0135562" @default.
- W4313366874 hasPublicationYear "2022" @default.
- W4313366874 type Work @default.
- W4313366874 citedByCount "1" @default.
- W4313366874 countsByYear W43133668742023 @default.
- W4313366874 crossrefType "journal-article" @default.
- W4313366874 hasAuthorship W4313366874A5000450890 @default.
- W4313366874 hasAuthorship W4313366874A5028229851 @default.
- W4313366874 hasAuthorship W4313366874A5030313771 @default.
- W4313366874 hasAuthorship W4313366874A5066761184 @default.
- W4313366874 hasAuthorship W4313366874A5070987650 @default.
- W4313366874 hasConcept C107816215 @default.
- W4313366874 hasConcept C120665830 @default.
- W4313366874 hasConcept C121332964 @default.
- W4313366874 hasConcept C1276947 @default.
- W4313366874 hasConcept C147789679 @default.
- W4313366874 hasConcept C185592680 @default.
- W4313366874 hasConcept C205049153 @default.
- W4313366874 hasConcept C34146451 @default.
- W4313366874 hasConcept C43617362 @default.
- W4313366874 hasConcept C4839761 @default.
- W4313366874 hasConcept C49040817 @default.
- W4313366874 hasConcept C520434653 @default.
- W4313366874 hasConceptScore W4313366874C107816215 @default.
- W4313366874 hasConceptScore W4313366874C120665830 @default.
- W4313366874 hasConceptScore W4313366874C121332964 @default.
- W4313366874 hasConceptScore W4313366874C1276947 @default.
- W4313366874 hasConceptScore W4313366874C147789679 @default.
- W4313366874 hasConceptScore W4313366874C185592680 @default.
- W4313366874 hasConceptScore W4313366874C205049153 @default.
- W4313366874 hasConceptScore W4313366874C34146451 @default.
- W4313366874 hasConceptScore W4313366874C43617362 @default.
- W4313366874 hasConceptScore W4313366874C4839761 @default.
- W4313366874 hasConceptScore W4313366874C49040817 @default.
- W4313366874 hasConceptScore W4313366874C520434653 @default.
- W4313366874 hasIssue "26" @default.
- W4313366874 hasLocation W43133668741 @default.
- W4313366874 hasOpenAccess W4313366874 @default.
- W4313366874 hasPrimaryLocation W43133668741 @default.
- W4313366874 hasRelatedWork W1982462850 @default.
- W4313366874 hasRelatedWork W1993350581 @default.
- W4313366874 hasRelatedWork W2053713739 @default.
- W4313366874 hasRelatedWork W2088361811 @default.
- W4313366874 hasRelatedWork W2763477625 @default.
- W4313366874 hasRelatedWork W2949936835 @default.
- W4313366874 hasRelatedWork W3112127806 @default.
- W4313366874 hasRelatedWork W4237236536 @default.
- W4313366874 hasRelatedWork W4244492191 @default.
- W4313366874 hasRelatedWork W4297854495 @default.
- W4313366874 hasVolume "121" @default.
- W4313366874 isParatext "false" @default.
- W4313366874 isRetracted "false" @default.
- W4313366874 workType "article" @default.