Questions tagged [laser-interaction]
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Would the use of LIPC's for Lasers avoid eye damage for bystanders?
Laser Induced Plasma Channels (LIPC) can create a tunnel of plasma in the air for a brief moment (milliseconds). But the formation of a LIPC is a process and not something instantaneous when it comes ...
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Fermi-Dirac integrals of different orders
Which physical quantities are related to the Fermi-Dirac integrals of different orders?
If fermi-dirac integral, write like this:
$$F_\xi(\eta_c) = \frac{1}{\Gamma(\xi+1)} \int_{0}^{\infty} \frac{x^{\...
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Will a laser with low power - operating as continuous wave - generate supercontinuum in nonlinear materials?
Some nonlinear optical materials, such as for example glass doped with As2Se3 or As2S3, are able to generate supercontinuum if a single mode laser pulse, in range of a few watts, is launched into the ...
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Frequency Dependent Absorption According to Wu
I was reading the paper "Theory of strong-field attosecond transient absorption" by Wu, and he says that the difference in energy of a material interacting with an electromagnetic field (...
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Laser cooling for an electron
In laser cooling, atoms can be slowed down by momentum transfer.
Laser cooling relies on the change in momentum when an object, such as an atom, absorbs and re-emits a photon (a particle of light).
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Second Harmonic Generation in metals
Assuming a metal driven by a femtosecond laser pulse could generate second harmonics, are these harmonics radiative?
In other words, do they reach the far-field?
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Cooper-Zare-Theory - Photoionization simulated in Python
My concrete problem is that I want to calculate cross-sections for photoionization transitions in argon in Python. For example from the excited state 3S^23p^56d into the continuum.
For this, I found ...
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Mechanism causing red fluorescence from green (532nm) laser in household glass
Background / Experiment
I was surprised by this toot by @gigabecquerel, where the author shows red fluorescence in the thick bottom of a (drink) glass when exposed to a cheap consumer-grade green ...
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Can combine a reflected laser beam with a refracted laser beam accurately?
If a laser beam is refracted and exits from the other side, and we project another laser beam so that it is reflected in the refraction of the first ray (regardless of the reflected half of the first ...
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Oscillation velocity of an electron in an electric field greater than c?
In relativistic laser matter interaction it is usually defined a parameter $a_0$ as $$a_0 = \frac{e E}{m_e \omega c},$$ with $E$ the amplitude of the oscillating electric field of frequency $\omega$. ...
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Recording Analog Data in Optical Disc Using Laser Beam Mechanism [closed]
Is it possible to storing/writing any Analog Audio Signal (i.e. Vinyl Record & etc) into a little bigger and thicker Optical Disc as compared to the other conventional Compact Disc while using the ...
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How does intermodulated fluorescence spectroscopy work?
Via intermodulation of two counter-propagating laser beams, a Doppler-free resonance spectrum of a gaseous sample can be observed in the fluorescence signal (see e.g. [1] Sorem+Schawlow (1972)).
Can ...
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What is adiabatic transfer?
In the context of atomic/quantum states preparation, what does adiabatic transfer mean? I'm currently reading about atom preparation using lasers and they talk about using adiabatic transfer to obtain ...
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What is meant by "low-lying" electronic states?
In the context of electronic structure and spectroscopy, the term "low-lying electronic states" is quite common but it really isn't defined anywhere. All google search results lead to ...
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Laser on metal surface: What happens in terms of photons, plasmons, phonons and their interactions?
I'm trying to better understand what exactly happens when a laser beam hits a surface (apart from reflection). Say I have a thick gold surface (could be coated with gold nanoparticles if that helps) ...
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