Sample interview questions: Can you discuss any experience you have with studying the optical phonons in crystalline materials?
Sample answer:
During my research in solid-state physics, I have extensive experience studying optical phonons in crystalline materials using various experimental techniques.
Raman Spectroscopy:
I have employed Raman spectroscopy to investigate the vibrational modes of phonons in semiconductors, oxides, and other crystalline materials. This technique provides valuable information about phonon frequencies, linewidths, and line shapes, which offer insights into the material’s bonding, crystal structure, and interatomic interactions.
Infrared Spectroscopy:
Using infrared spectroscopy, I have characterized the infrared-active phonon modes in various materials. This technique complements Raman spectroscopy by providing information about the transverse optical (TO) and longitudinal optical (LO) phonons, enabling the determination of dielectric properties and phonon-polariton coupling.
THz Spectroscopy:
I have utilized THz spectroscopy to probe the collective modes of optical phonons in polar materials. THz waves interact … Read full answer
Source: https://hireabo.com/job/5_0_12/Solid-State%20Physicist