Florian Metzler

5 Questions 3 Answers 0 Followers

Questions related from Florian Metzler

Have Quantum Cascade Lasers been used to excite phonons (e.g. in solid-state samples)?

I am aware of many femtosecond laser based approaches to excite phonon modes e.g. in crystals and minerals. Quantum Cascade Lasers (QCLs) seem like an interesting alternative, especially since...

28 May 2020 5,921 3 View

In Resonance Energy Transfer (e.g. FRET) what are typical values for interaction strengths and/or matrix elements between donors and receivers?

My understanding is that the dipole-dipole interaction strength V is related to the coupling matrix element H as follows (where |i> is the initial state and |f> is the final state): V = /r^3 I...

26 March 2020 7,195 0 View

Fe-57 foil for Mossbauer experiments: Does it rust and how to prevent it from rusting?

I'm about to order some Fe-57 foil from an isotope supplier. However, I worry about oxidation. Does the foil need to be kept in an inert environment during all storage and use? Or do such foils...

19 February 2020 9,030 3 View

What are considered state-of-the-art nuclear structure models with relativistic treatment of nucleons?

The shell model treats the motion of nucleons within the nucleus as non-relativistic; I'm looking for models that treat the motion of nucleons as relativistic.

04 April 2019 5,720 4 View

When calculating market cap, how to consider different securities of a firm (with separate ISINs)?

Typically market cap is defined as stock price multiplied by the total number of shares outstanding. I've pulled those numbers from Compustat for the firms I'm interested in (variables prccd...

21 November 2016 3,969 4 View