Electromagnetically induced transparency controlled by a microwave field (2009)
Li, Hebin, Sautenkov, Vladimir A., Rostovtsev, Yuri V., Welch, George R., Hemmer, Philip R., Scully, Marlan O.
We have experimentally studied propagation of two optical fields in a dense rubidium (Rb) vapor in the case when an additional microwave field is coupled to the hyperfine levels of Rb atoms. The Rb...
Optical imaging beyond the diffraction limit via dark states (2008)
Li, Hebin, Sautenkov, Vladimir A., Kash, Michael M., Sokolov, Alexei V., Welch, George R., Rostovtsev, Yuri V., ...
We study the possibility of creating spatial patterns having subwavelength size by using the so-called dark states formed by the interaction between atoms and optical fields. These optical fields...
Visible and UV coherent Raman spectroscopy of dipicolinic acid (2005)
Pestov,Dmitry, Zhi,Miaochan, Sariyanni,Zoe-Elisabeth, Kalugin,Nikolai G., Kolomenskii,Alexandre A., Murawski,Robert, ...
Spectral Narrowing via Quantum Coherence (2005)
Mikhailov, Eugeniy E., Sautenkov, Vladimir A., Rostovtsev, Yuri V., Zhang, Aihua, Zubairy, M. Suhail, Scully, Marlan O., ...
We have studied the transmission of an optically thick Rb vapor that is illuminated by monochromatic and noise broaden laser fields in Lambda configuration. The spectral width of the beat signal...
Visible and UV coherent Raman spectroscopy of dipicolinic acid (2005)
Pestov, Dmitry, Zhi, Miaochan, Sariyanni, Zoe-Elisabeth, Kalugin, Nikolai G., Kolomenskii, Alexandre A., Murawski, Robert, ...
Nonlinear magneto-optical effects in Ba vapor (2004)
Novikova, Irina, Khanbekyan, Alexander, Sarkisyan, David, Welch, George R.
We report the first measurements of linear and nonlinear magneto-optical polarization rotation on an intercombination transition of Ba vapor (lambda= 791.1nm). We observe a maximum polarization...
Mikhailov, Eugeniy E., Sautenkov, Vladimir A., Novikova, Irina, Welch, George R.
We experimentally study the group time delay for a light pulse propagating through hot Rb vapor in the presence of a strong coupling field in a $\Lambda$ configuration. We demonstrate that the...
Buffer-gas induced absorption resonances in Rb vapor (2003)
Mikhailov, Eugeniy E., Novikova, Irina, Rostovtsev, Yuri V., Welch, George R.
We observe transformation of the electromagnetically induced transparency (EIT) resonance into the absorption resonance in a $\Lambda$ interaction configuration in a cell filled with $^{87}$Rb and a...
Group velocity study in hot Rb vapor with buffer gas (2003)
Mikhailov, Eugeniy E., Rostovtsev, Yuri V., Welch, George R.
We study the behavior of the group velocity of light under conditions of electromagnetically induced transparency (EIT) in a Doppler broadened medium. Specifically, we show how the group delay (or...
Absorption resonance and large negative delay in Rb vapor with buffer gas (2003)
Mikhailov, Eugeniy E., Sautenkov, Vladimir A., Rostovtsev, Yuri V., Welch, George R.
We observe a narrow, isolated, two-photon absorption resonance in Rb for large one-photon detuning in the presence of a buffer gas. In the absence of buffer gas, a standard Lambda configuration of...
Ultra-Slow Light and Enhanced Nonlinear Optical Effects in a Coherently Driven Hot Atomic Gas (1999)
Kash, Michael M., Sautenkov, Vladimir A., Zibrov, Alexander S., Hollberg, L., Welch, George R., Lukin, Mikhail D., ...
We report the observation of small group velocities of order 90 meters per second, and large group delays of greater than 0.26 ms, in an optically dense hot rubidium gas (~360 K). Media of this kind...
Quantum Optical Implementations of Current Quantum Computing Paradigms (1998)
Scully, Marlan O., Zubairy, M. S., Welch, George R.
We have taken a systematic study of the use of the tools of quantum optics for the implementation of tasks relevant to quantum information and computing. As is widely recognized, the maturation of...
Visible and UV coherent Raman spectroscopy of dipicolinic acid
Pestov, Dmitry, Zhi, Miaochan, Sariyanni, Zoe-Elizabeth, Kalugin, Nikolai G., Kolomenskii, Alexandre A., Murawski, Robert, ...
We use time-resolved coherent Raman spectroscopy to obtain molecule-specific signals from dipicolinic acid (DPA), which is a marker molecule for bacterial spores. We use femtosecond laser pulses in...
Visible and UV coherent Raman spectroscopy of dipicolinic acid
Pestov, Dmitry, Zhi, Miaochan, Sariyanni, Zoe-Elizabeth, Kalugin, Nikolai G., Kolomenskii, Alexandre A., Murawski, Robert, ...
We use time-resolved coherent Raman spectroscopy to obtain molecule-specific signals from dipicolinic acid (DPA), which is a marker molecule for bacterial spores. We use femtosecond laser pulses in...