Fundamentals of Laser Interactions
DOI: 10.1007/3-540-15640-2_48
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Four wave frequency mixing in gases

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Cited by 7 publications
(3 citation statements)
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“…Here we describe highly efficient continuous four-wave mixing in the VUV by using three different fundamental wavelengths with a sophisticated choice of detunings to resonances of the nonlinear medium. Up to 6 microwatts of vacuum ultraviolet radiation at 121 nm can be generated which corresponds to an increase of three orders of magnitude in efficiency.VUV laser radiation can be generated by four-wave sum-frequency mixing (FWM) in gases and metal vapours [6,7,8], a process in which three laser fields generate a nonlinear polarisation which acts as the driving term for the fourth coherent field at the sum-frequency. A two-photon resonance is kown to dramatically enhance the FWM efficiency [9].…”
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confidence: 99%
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“…Here we describe highly efficient continuous four-wave mixing in the VUV by using three different fundamental wavelengths with a sophisticated choice of detunings to resonances of the nonlinear medium. Up to 6 microwatts of vacuum ultraviolet radiation at 121 nm can be generated which corresponds to an increase of three orders of magnitude in efficiency.VUV laser radiation can be generated by four-wave sum-frequency mixing (FWM) in gases and metal vapours [6,7,8], a process in which three laser fields generate a nonlinear polarisation which acts as the driving term for the fourth coherent field at the sum-frequency. A two-photon resonance is kown to dramatically enhance the FWM efficiency [9].…”
mentioning
confidence: 99%
“…VUV laser radiation can be generated by four-wave sum-frequency mixing (FWM) in gases and metal vapours [6,7,8], a process in which three laser fields generate a nonlinear polarisation which acts as the driving term for the fourth coherent field at the sum-frequency. A two-photon resonance is kown to dramatically enhance the FWM efficiency [9].…”
mentioning
confidence: 99%
“…Το αέριο εισάγεται στον χώρο αλληλεπίδρασης συνήθως μέσω ενός παλμικού πίδακα αερίου με στενό άνοιγμα (nozzle ή jet) ή σε μερικές περιπτώσεις βρίσκεται σε στατικό θάλαμο μικρών σχετικά διαστάσεων (τάξεως mm) με παράθυρα διαπερατά στο μήκος κύματος του λέιζερ. Στην περίπτωση της αλληλεπίδρασης ακτινοβολίας λέιζερ χαμηλής έντασης με αέρια οι αρμονικές που παράγονται είναι συνήθως πολύ μικρής απόδοσης και μικρής τάξης (C. Vidal[120]). Αυτό δημιουργεί ένα ηλεκτρικό δίπολο μέσα στο ίδιο το άτομο, όπως φαίνεται στο παρακάτω σχήμα (Εικ.…”
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