Efficient two-stage laser enrichment up to 99% of carbon-13 isotope by IR multiphoton dissociation of Freon molecules

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Laser Isotope Enrichment

The idea of laser isotope enrichment grew from the laser’s ability to concentrate its output power in a narrow range of wavelengths. Different isotopes of the same element are very hard or impossible to separate chemically, but the difference in their masses leads to differences in their spectra, which in principle can be used to selectively excite one isotope and isolate it by some photo-induc...

Isotope effects and bond softening in intense-laser-field multiphoton dissociation of H2+

Isotope efFects in the Hz+-Dz+ fragmentation by intense laser fields o6er the possibility of a multiphoton interpretation of the bond-softening mechanism. Surprisingly, the calculations indicate that the one-photon dissociation of D&+ is favored with respect to that of H&+. This cannot be understood, as has previously been done, by a single-photon mechanism following tunneling through a lowered...

Infrared multiphoton dissociation of two perfluorobutenes

Implementation of laser induced fluorescence technique to study the kinetics of radicals generated in the IR multiphoton dissociation of chloroform

In this work we present the design and implementation of an experimental facility for the study of the reaction mechanisms of the CCl2 radicals produced in the Infrared Multiple-Photon Dissociation of CDCl3. The design of this facility was performed by combining two techniques: Laser Induced Fluorescence (LIF) and Infrared Multiple-Photon Dissociation (IRMPD). A TEA CO2 laser and a dye laser we...