@proceedings{12889, keywords = {Atomic and molecular physics, Coherent optical effects, spectroscopy, spectroscopy, coherent transient, Four wave mixing, Fourier transform spectroscopy, Fourier transforms, Nonlinear optical signals, Oscillator strengths, Resonance}, author = {Xingcan Dai and Alan Bristow and Denis Karaiskaj and Shaul Mukamel and Steven Cundiff}, title = {Two-Quantum Resonances Observed in Potassium Vapor by Two-Dimensional Fourier-Transform Spectroscopy}, abstract = {

Unexpected two-quantum resonances are observed in potassium vapor using two-dimensional Fourier-transform spectroscopy. These transitions are an unambiguous indication of many-body interactions, which arise from the long-range interatomic coupling that is responsible for resonance self-broadening.

}, year = {2009}, journal = {Conference on Lasers and Electro-Optics/International Quantum Electronics Conference}, pages = {IPDB8}, month = {2009-05}, publisher = {Optica Publishing Group}, url = {https://opg.optica.org/abstract.cfm?URI=IQEC-2009-IPDB8}, doi = {10.1364/IQEC.2009.IPDB8}, }