[Octopus-users] Negative absorption co-efficient in TD run
juzar18 at gmail.com
Mon Nov 16 14:35:02 WET 2009
I'm calculating the absorption spectra of Si3H3. The propagation time
tmax=30 with a time step of 0.002. The strength of the laser kick is 0.005.
The negative value of the peak is around 7eV with a value of ~-0.2 with the
maximum peak around 1.4.
Hope this information helps.
On Mon, Nov 16, 2009 at 7:51 PM, Xavier Andrade <xavier at tddft.org> wrote:
> Hi Juzar,
> Can you give us more details? What are calculating? What is the propagation
> time? How negative is the absorption?
> On Mon, 16 Nov 2009, Juzar Thingna wrote:
> Hello Everyone,
>> I'm performing some TD calculations but when I plot the absorption spectra
>> from the TD run I get negative values of the absorption co-efficient.
>> can someone explain to me, why this is happening?
>> "At the end of all our searching we will arrive at the place we began and
>> know it for the first time."
"At the end of all our searching we will arrive at the place we began and
know it for the first time."
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