Publications by authors named "Aldair Alejandro"
Article Synopsis
- - The study investigates how energy flows between vibrational modes in gas-phase fluorobenzene after it's excited with a multi-THz pump, emphasizing the importance of anharmonic coupling.
- - It concludes that simple models based only on anharmonic coupling coefficients are insufficient, highlighting the need to consider the full motion of each mode during excitation.
- - The findings suggest that vibrational modes with A1 or B2 symmetry play a more significant role in energy transfer due to their favorable symmetry-allowed pathways.
Article Synopsis
- Second-harmonic generation (SHG) is an important technique for producing light, particularly useful at short IR/visible wavelengths, but struggles with longer IR wavelengths like 1300, 1550, and 2000 nm.
- This study examines three organic materials—DAST, DSTMS, and PNPA—that have shown efficient performance for SHG at these longer IR wavelengths.
- These organic crystals have been found to outperform the traditional inorganic beta-barium borate (BBO) in generating SHG using IR pump wavelengths.
Understanding the role of sea spray aerosol (SSA) on climate and the environment is of great interest due to their high number concentration throughout the Earth's atmosphere. Despite being of fundamental importance, direct surface tension measurements of SSA relevant sub-micrometer particles are rare, largely due to their extremely small volumes. Herein, atomic force microscopy (AFM) is used to directly measure the surface tension of individual sub-micrometer SSA particle mimics at ambient temperature and varying relative humidity (RH).
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