Abstracts of Current Research:- Absorption with inversion and amplification without inversion in a coherently prepared V - system: a dressed state approach: Light induced absorption with population inversion and amplification without population inversion (LWI) in a coherently prepared closed three level V - type system are investigated.This study is performed from the point of view of a two color dressed state basis. Both of these processes are possible due to atomic coherence and quantum interference contrary to simple intuitive predictions.Merely on physical basis, one would expect a complementary process to the amplification without inversion. We believe that absorption in the presence of population inversion found in the dressed state picture utilized in this study, constitutes such a process. Novel approximate analytic time dependent solutions, for coherences and populations are obtained, and are compared with full numerical solutions exhibiting excellent agreement.Steady state quantities are also calculated, and the conditions under which the system exhibits absorption and gain with and without inversion, in the dressed state representation are derived. It is found that for a weak probe laser field absorption with inversion andamplification without inversion may occur, for a range of system parameters.
- Atomic and Molecular Autoionization Resonances of Ne, Ar, and Ar2: A simple spectroscopic technique to search, identify and detect atomic and molecular autoionization transitions in Ar and Ne is introduced. This technique is based on the optogalvanic effect. and it can be applied to study autoionization atomic and molecular autoionization Rydberg series of atoms and molecules.
- Cooper Pairs Breakup upon Hydrogenation of YBCO: Two Magnon Raman Scattering: Raman spectra of Hydrogenated YBa2Cu3O7 + Hy y=0.45 atoms per units cell exhibit important change in the electronic excitation scattering. Upon progressive doping with Hydrogen two magnon scattering features emerge. This coincides with the transition of YBa2Cu3O7 from superconducting to antiferromagnetic phase. Exchange energy values were obtained from two magnon Raman scattering of two doped material.
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Publications:- Alexander Gusarov, David Levron, Andrei Ben-Amar Baranga, Eugene Paperno, and Reuben Shuker.. An all-optical scalar and vector SERF magnetometer employing on-off pump modulation J. Appl. Phys : (2011)
- G. A.Koganov and R. Shuker
. “Two-photon gain without inversion vs linear absorption in a three-level scheme”
Laser Phys
: (2011)
- D. Braunstein, E. Smolik, G.A. Koganov, Y. Biton, and R. Shuker. ”Counterintuitive versus regular inversionless gain in a coherently prepared ladder scheme”, Laser Phys : (2011)
- R. Shuker, A. Har-Tal and G. A. Koganov,
. "Counterintuuitive gain without inversion enhancement in pulsed fields sequence",
Laser Phys.
20: 954-959 (2010)
- D. Braunstein and R. Shuker,
. Dressed states analysis of lasing without inversion in a three-level ladder system: the steady-state regime
J. Phys. B: At. Mol. Opt. Phys.
42: 125401 (2009)
- Alexander Gusarov, David Levron, Eugene Paperno, Reuben Shuker, and Andrei Ben-Amar Baranga
. 3-D Magnetic Field Measurements in a Single SERF Atomic-Magnetometer Cell IEEE TRANSACTIONS ON MAGNETICS
45: 4478-4482 (2009)
- D. Braunstein and R. Shuker,
. “Dressed States Analysis of Lasing Without Population Inversion in a Three-Level Ladder Scheme:Approximate Analytic Time Dependent Solutions.”
Laser Physics 19: 290–304 (2009)
- G. A. Koganov, and R. Shuker,
. “Coherent Control of ac Stark Allowed Transition in System” Laser Physics
19: 730-735 (2009)
- Reuben SHUKER, Yevgeni Shabayev, Leila Zeiri
. " Optical Nonlinear and Amplification Effects in CdS Nano-Rods"
World J. Engineering 6: 941 (2009)
- D. Braunstein and R. Shuker, . "Time Dependent Dressed states Analysis of Lasing Without Population Inversion in a Three-level Ladder Scheme.”
Laser Physics
18: 237 (2008)
- Ben-Yehuda, O; Shuker, R.; Gelbstein, Y.; Dashevsky, Z.; Dariel, M. P. . "Highly textured Bi2Te3-based materials for thermoelectric energy conversion" J. Appl. Phys. 101: 113707 (2007)
- A.Pesach, R. Shuker and E. Sterer . "Pressure-induced insulator to metal transition in amourphous SiO" Phys. Rev. B 76 Rapid Comm.: RC 161102 (2007)
- D. Braunstein and R. Shuker,
. “A scheme for ultrashort X-ray lasing without inversion”
Laser Physics
16: 317-321 (2006)
- A. Ben-Arie, G. A. Koganov, and R. Shuker,
. Quantum-fluctuation properties of the ladder scheme of a three-level laser incoherent pumping
Phys. Rev. A
74: 053811 (2006)
- V.Ahufinger , R. Shukerand and R. Corbalan
. Frequency up-conversion He-Ne laser without inversion
Applied Physics B: Lasers and Optics
80: 67-72 (2005)
- Gennady A. Koganov, Reuben Shuker and Evgueni P. Gordov,
. “Multi-mirror autodyne lidar for local detection of hostile gases”
Appl. Optics
44: 3105-3109 (2005)
- D. Braunstein and R. Shuker.
. X-ray laser without inversion in a three-level ladder system
Phys. Rev. A 68: 013812 (2003)
- G.A. Koganov, and R. Shuker
. Autodyne lidar modeling: analytical and numerical calculations
Appl. Optics
41: 7087 (2002)
- D. Braunstein and R. Shuker.
. “Absorption with inversion and amplification without inversion in a coherently prepared V-system : a dressed state approach .”
“Absorption with inversion and amplification without inversion in a coherently prepared V-system : 64: 053812 (2001)
- M. V. Landau, A. Gutman, M. Hershkowitz, R. Shuker, Y. Bitton, and D. Mogilansky
. The role and stability of Li2O2 phase in supported LiCl catalyst in oxidation of n-Buthane
J. Molecular Catalysis :A
176: 127 (2001)
- W. Gawlik, R. Shuker, and A.Gallagher.
. Temporal Character of Pulsed - Laser Cone Emission
Phys. Rev. A Rapid Communications 64: 021801 (2001)
- G. Koganov and R. Shuker
. "Photon Statistics of a Ground-State-Pumped Laser."
Phys. Rev. A
63: 015802 – 015805 (2001)
- Koganov, G.A. & Shuker, R.. Threshold and non-linear behavior of lasers of L and V - configurations. Phys. Rev. A. 58: 1559-1562 (1998)
- Braunstein, D., Khazanov, A.M., Koganov, G.A. & Shuker, R.. Lowering of threshold conditions for nonlinear effects in a microspheres. Phys. Rev. A. 53: 3565-3572 (1997)
- Nahum, N.K. & Shuker, R.. Phase Conjugation of a Q-Switched Nd:YAG Laser Radiation at the Semiconductor Metal Phase Transition in VO2. LASERS?95, Ed. V.J. Corcoran & T.A. Goldman, STS PRESS, McLEAN, VA (1996). : 267-274 (1997)
- Koganov, G.A. & Shuker, R.. Monte Carlo Simulations of Laser and Maser Operation. Laser Physics 7: 257-262 (1997)
- Shuker, R. & Biton, Y.. Manifestation of the Electronic Correlation in Hi Tc Superconductors by Raman Scattering. Laser Physics 7: 339-342 (1997)
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