ot tl

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Questions related from ot tl

What is the physical explanation for centeral dip and annulus peaks in radial pitot measurements after the Mach disk in supersonic gas expansion?

In the first attached article: "Behavior of free and impinging supersonic micro-jets" in Figure 15 the radial measurement, of a PITOT tube after the Mach disk in a supersonic free gas expansion,...

01 January 2016 3,754 0 View

Does anybody know of a density dip in the axis of symmetry in a free jet expansion and the cause for it?

In a reconstruction of the density profile of an atomic gas jet emanating from an axis-symmetric converging microscopic nozzle, we got from the Abel inversion of some slices a dip in the density...

12 December 2015 2,543 2 View

Is the density distribution profile of a clustered gas jet similar to that of atomic gas jet with no clustering?

I'm trying to reconstruct the density distribution of an atomic gas jet from measured projections. I want to compare my results with what is expected from jets' distributions. I found an article...

11 November 2015 7,302 4 View

Can cylindrical nozzles produce microscopic supersonic gas jets?

Regarding gas jets for laser interactions, such as generation of high harmonics - I've seen articles that discuss nozzle designs for producing supersonic gas jets. Those articles always discuss a...

10 October 2015 5,783 6 View

What's the meaning of the "quantum effect" ( in the context of the effective principal and orbital quantum numbers n* & l*) ?

In the article "tunnel ionization of complex atoms and of atomic ions in an alternating electromagnetic field" (ADK ionization model) it is written: "...to derive an equation for the probability...

05 May 2015 5,086 4 View

How to get a probability from a probability rate?

In articles regarding models of atoms' ionization by a laser electric field, the ionization probability rate is given. I was told that it's not correct as a rule to get the ionization probability...

04 April 2015 8,464 2 View

What are the quantum numbers l and m of the first ionized electron from an Argon atom?

the ionization probability as given by A. M. PERELOMOV, V. S. POPOV, and M. V. TERENT'EV in their article "IONIZATION OF ATOMS IN AN ALTERNATING ELECTRIC FIELD", or by Gennady L. Yudin and Misha...

03 March 2015 4,270 1 View

Anyone know of some publications about Yudin-Ivanov ionization rate formula after time averaging over the laser pulse?

In the article 'Nonadiabatic Tunnel ionization: Looking inside a laser pulse' Yudin and Ivanov give a closed-form analytical expression for the ionization rate, which is valid for arbitrary values...

03 March 2015 986 1 View

Can someone show me the derivation to the width of the potential barrier for tunneling of an electron in the presence of strong EM wave?

can someone please show me the derivation to the width of the potential barrier w=Ip/(e*E), where Ip is the ionization enery, for electron tunneling in the presence of strong electronmagnetic...

12 December 2014 5,669 1 View