Observation of broadband forward hyper-Raman emission with high intensity focused laser beams

التفاصيل البيبلوغرافية
العنوان: Observation of broadband forward hyper-Raman emission with high intensity focused laser beams
المؤلفون: Marvin G. Payne, Lu Deng, W. R. Garrett, D. Z. Lee
المصدر: Optics Communications. 142:253-256
بيانات النشر: Elsevier BV, 1997.
سنة النشر: 1997
مصطلحات موضوعية: Physics, business.industry, Bandwidth (signal processing), Physics::Optics, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, symbols.namesake, Optics, Stark effect, law, Broadband, symbols, Physics::Atomic Physics, Emission spectrum, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, Raman spectroscopy, business, Laser beams, Power density
الوصف: We show that the well known multiphoton destructive interference, which leads to hyper-Raman gain suppression in the weak pumping regime, no longer occurs under strong pumping conditions. In contrast to the weak pumping case, where no forward hyper-Raman can be observed and strong backward hyper-Raman occurs, forward hyper-Raman emission is found to be much stronger under strong pumping conditions. The emission spectrum acquires new characteristics due to the ac Stark effect introduced by the strong laser field. The frequency spectrum of the forward hyper-Raman is no longer determined by the laser bandwidth, instead a continuum of forward hyper-Raman emission is observed with the width being determined by the peak power density. We will present here a comparison between strong and weak pumping regimes.
تدمد: 0030-4018
DOI: 10.1016/s0030-4018(97)00316-7
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::6f708d52ff75fc7ad7345b0086b69b4b
https://doi.org/10.1016/s0030-4018(97)00316-7
Rights: CLOSED
رقم الانضمام: edsair.doi...........6f708d52ff75fc7ad7345b0086b69b4b
قاعدة البيانات: OpenAIRE
الوصف
تدمد:00304018
DOI:10.1016/s0030-4018(97)00316-7