Vibrational spectroscopy of polar molecules with superradiance
نویسندگان
چکیده
منابع مشابه
Probing polar molecules with high harmonic spectroscopy.
We bring the methodology of orienting polar molecules together with the phase sensitivity of high harmonic spectroscopy to experimentally compare the phase difference of attosecond bursts of radiation emitted upon electron recollision from different ends of a polar molecule. This phase difference has an impact on harmonics from aligned polar molecules, suppressing emission from the molecules pa...
متن کاملRaman Spectroscopy Investigation of the Polar Vibrational Modes in CuB2O4
We report results of polarized Raman spectroscopy of piezoelectric copper metaborate CuB2O4 (space group I ̄42d, Z = 12) in the range from 80 to 1300 cm−1. Due to the dense population of the phonon spectra we carried out angular-dependent measurements by rotating the sample in different crystallographic planes thus performing gradual transitions from one polarization configuration to another. T...
متن کاملCalculation of anharmonic vibrational spectroscopy of small biological molecules
R. B. Gerber,* B. Brauer, S. K. Gregurick and G. M. Chaban Department of Physical Chemistry and Fritz Haber Research Center, The Hebrew University, Jerusalem 91904, Israel Department of Chemistry, University of California, Irvine, CA 92697, USA Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, MD 20215, USA NASA Ames Research Center, Moffet Field, CA...
متن کاملPolarizable molecules in the vibrational spectroscopy of water.
We examine the role of electronic polarizability in water on short (tens of femtoseconds), intermediate (hundreds of femtoseconds), and long (approximately 1 ps) time scales by comparing molecular dynamics results to experimental data for vibrational spectroscopy of HOD in liquid D2O. Because the OH absorption frequency is sensitive to the details of the atomic forces experienced in the liquid,...
متن کاملRecollision-Induced Superradiance of Ionized Nitrogen Molecules.
We propose a new mechanism to explain the origin of optical gain in the transitions between the excited and ground states of the ionized nitrogen molecule following irradiation of neutral nitrogen molecules with an intense ultrashort laser pulse. An efficient transfer of population to the excited state is achieved via field-induced multiple recollisions. We show that the proposed excitation mec...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Molecular Physics
سال: 2013
ISSN: 0026-8976,1362-3028
DOI: 10.1080/00268976.2013.803167