Study of two-photon resonant four-wave sum mixing in xenon in the spectral region of 105–110nm

Al-Basheer, Watheq; Hedén, M.; Cai, Zhang; Shi, Yujun

doi:10.1016/j.chemphys.2011.01.009

Cited by 7 publications

(3 citation statements)

References 36 publications

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“…To differentiate between the "+" and "−" cases, some authors refer to them as "four-wave sum mixing" and "four-wave difference mixing", respectively. 15,16 When all incident photons have identical frequency ω, the process simplifies to ω FWM = 3ω, i.e., the THG phenomenon.…”

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confidence: 99%

“…In the case of only two incident frequencies ω 1 and ω 2 , degenerate FWM gives rise to four different generated frequencies, ω FWM = 2ω 1,2 ± ω 2,1 . To differentiate between the “+” and “–” cases, some authors refer to them as “four-wave sum mixing” and “four-wave difference mixing”, respectively. , When all incident photons have identical frequency ω, the process simplifies to ω FWM = 3ω, i.e., the THG phenomenon.…”

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confidence: 99%

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Degenerate Four-Wave Mixing in a Multiresonant Germanium Nanodisk

Grinblat

Nielsen

et al. 2017

ACS Photonics

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Dielectric nanoantennas excited at Mie resonances are becoming suitable candidates for nonlinear optical effects due to their large intrinsic nonlinearity and capability to highly confine electromagnetic fields within subwavelength volumes. In this work, we show that a single Ge nanodisk, recently demonstrated as an efficient source of third harmonic generation (THG), can also be exploited for four-wave mixing (FWM) phenomena. The high field enhancement inside the disk yields effective third-order susceptibilities as high as 2×10 -8 esu (2.8×10 -16 m 2 /V 2 ), which were determined by single pump wavelength THG measurements tuned to high-order Mie modes. A similar nonlinear optical response is observed in the case of degenerate FWM where two different pump wavelengths are coupled to a single high-order resonant mode. However, when the two pump wavelengths are coupled to different high order modes, the FWM process is partially suppressed due to a diminished near-field spatial overlap of the mixed wavelengths within the disk. This investigation reveals useful pathways for the optimization of third-order optical processes in all-dielectric nanostructures.

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Degenerate Four-Wave Mixing in a Multiresonant Germanium Nanodisk

Grinblat

Nielsen

et al. 2017

ACS Photonics

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“…Unlike other aspects of light interaction with matter [16][17][18][19], the Faraday effect is explained by the circular anisotropy that dielectric media exhibit in the presence of a strong magnetic field due to the longitudinal Zeeman effect splitting of the ground and excited states [6]. For example, when atomic gases are placed in a strong longitudinal magnetic field, the Zeeman sublevels of the ground state are shifted in energy by gμBM, where g is the Landé factor, μ is the Bohr magneton, and B and M are the magnetic field strength and the sub-levels number, respectively.…”

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Verdet constant determination of dielectric media using a new versatile, portable and low-cost magneto-optical rotator

Al-Basheer¹

2020

Eur. J. Phys.

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The full details of a newly developed versatile, portable and low-cost magneto-optical device for the accurate determination of Verdet constant over the wavelength range of 400–480 nm in undergraduate physics and chemistry labs are presented. The elevated sensitivity of the device is achieved by using a semiconducting photodiode detector coupled with an electronic circuit board, which is configured to autonomously record the finest rotation angle in the polarization direction of the transmitted light relative to a reference polarizer. Two different mechanisms to generate a strong coaxial magnetic field of ∼1.34 T are presented, using either a ring neodymium permanent magnet or a solenoid fed by a lithium-ion battery cell. Due to its versatility, portability and low-cost, the presented device is expected to replace most currently existing bulky and expensive setups.

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