Multifoton Süreçlerde Atomik Sistem ile Etkileşen Süper Yoğun Lazer Alanları: Dipol ve Rölativistik Olmayan Etkiler

Yıl 2017, , 1 - 9, 28.12.2017

Dilan Alp

https://doi.org/10.29132/ijpas.347774

Cited By: 2

Öz

Bu çalışmada, güçlü alan ile etkileşen
bir elektronlu atomik sistemlerde yüksek mertebeden harmonik üretim
süreçlerine, kuantum mekaniksel ve analitik çözümler sunulacaktır. Güçlü lazer
alanı varlığındaki hesaplamalarda, göreli olmayan Schrödinger dalga denklemi ve
dipol yaklaşıklığın bozulduğu multifoton süreçlerin, basit tanımları
irdelenmiştir.  Manyetik alan bileşenin
1/c mertebesinde olduğu için dipol olmayan etkilerin yüksek mertebeden harmonik
üretime katkıları tartışılmıştır.  Bunun
ardından güçlü alan yaklaşıklığının tanımı ile tek elektronlu atomik sistemler
için yüksek mertebeden harmonik üretimin yarı klasik modeli ve tamamen kuantum
mekaniksel nicelikleri ele alınmıştır. 
Güçlü alanda geleneksel olarak ‘saddlepoint’ yaklaşımı altında uzunluk
ayar dönüşümü ile harmonik spektrum için çözümler analiz edilmiştir. Son
yıllarda yüksek harmonik üretim için kaynak olan attosaniye atımlar (10^-18
saniye), elektronların dinamiği için güncel araştırma konusu olmuştur.  Günümüzde, yüksek mertebeden harmonik üretim
tarafından sentezlenen attosaniye atımları birçok bilimsel çalışmada kaynak
olarak kullanılmıştır. Bu derleme çalışma ve sonuçları, atomik fizik
teknikleriyle incelenmeye başlanan yüksek mertebeden harmonik üretim, optik ve
enerji alanlarında oldukça heyecan verici sonuçlar elde edilen geniş bir
uygulama alanına ışık tutmuştur.

Anahtar Kelimeler

Attosaniye atımlar, multifoton süreçler, bir elektronlu atomik sistemler, foton enerji, güçlü lazer alanı

Super Intensity Laser Fields Interacted with Atomic System in Multiphoton Processes: Non-Dipole and Non-Relativistic Effects

Öz

As a result of
interaction of laser pulses with one-electron atomic systems described that
analytic and quantum theory of high harmonic generation by a multiphoton
strong-field process. In this study explained that non-relativistic Schrödinger
equation and dipole approximation is inconclusive when the single atom
interacted with in strong laser field based on simple characterization of
multiphoton process. Furthermore, all the calculation discusses how non–dipole
influence of order 1/c due to magnetic field component of laser pulse, effects
harmonic generation. After that, generation of high order harmonic in single
atoms within framework of strong field approximation in semi-classical and
quantum mechanical model which have analyzed by the saddle point approximation.
In recent years, taking into consideration to the results of this research
topic is produced the high harmonic orders as a source of attosecond pulses (10^-18
seconds) which could investigate for dynamics of electron in atoms. Nowadays,
attosecond pulses synthesized by high order harmonic generation have been used
as a source in many scientific studies. By this review study, has offered a
solution of high harmonic generation, large application and search area that
uses new invented optical techniques and energy production.

Anahtar Kelimeler

Attosecond pulses, multiphoton process, one-electron atomic systems, photon energy, strong laser field

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