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Coherent control of the Goos-Hanchen shift
The behavior of the Goos-Hanchen (GH) shifts in the reflected and transmitted light beam which is incident on a cavity containing an intracavity medium of three-level or four-level atoms with electromagnetically induced transparency (EIT) is discussed. We report a coherent control of the GH shift in a fixed configuration or device via superluminal and subluminal wave propagation. For superluminal wave propagation, we observe negative GH shifts in the reflected part of the incident light whereas the shifts are positive in the transmitted light beam. This corresponds to the negative group index of the cavity in the former case and positive group index of the cavity in the latter. For subluminal wave propagation, the behavior of the GH shifts in the reflected light changes and positive shifts appear; however, the GH shifts in the transmitted light remains positive. The corresponding group index of the cavity is positive in both cases.
Author(s): Ziauddin (Ziauddin); Qamar, S (Qamar, Sajid); Zubairy, MS (Zubairy, M. Suhail)
Source: PHYSICAL REVIEW A, 81 (2): Art. No. 023821 FEB 2010
Language: English
Document Type: Article
KeyWords Plus: ELECTROMAGNETICALLY INDUCED TRANSPARENCY; ATOMIC COHERENCE; REFRACTIVE-INDEX; QUANTUM INTERFERENCE; ABSORBING MEDIA; GROUP-VELOCITY; REFLECTION; ENHANCEMENT; SYSTEM; DISPLACEMENT
Addresses: Ziauddin; Qamar, Sajid; Zubairy, M. Suhail] COMSATS Inst Informat Technol, Ctr Quantum Phys, Islamabad, Pakistan; [Zubairy, M. Suhail] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA; [Zubairy, M. Suhail] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
Reprint Address: Ziauddin, COMSATS Inst Informat Technol, Ctr Quantum Phys, Islamabad, Pakistan.
Funding Agency: Qatar National Research Fund (QNRF)
Publisher: AMER PHYSICAL SOC
Publisher Address: ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN: 1050-2947
29-char Source Abbrev.: PHYS REV A
ISO Source Abbrev.: Phys. Rev. A
Subject Category: Optics; Physics, Atomic, Molecular & Chemical
ISI Document Delivery No.: 562RW
Author(s): Ziauddin (Ziauddin); Qamar, S (Qamar, Sajid); Zubairy, MS (Zubairy, M. Suhail)
Source: PHYSICAL REVIEW A, 81 (2): Art. No. 023821 FEB 2010
Language: English
Document Type: Article
KeyWords Plus: ELECTROMAGNETICALLY INDUCED TRANSPARENCY; ATOMIC COHERENCE; REFRACTIVE-INDEX; QUANTUM INTERFERENCE; ABSORBING MEDIA; GROUP-VELOCITY; REFLECTION; ENHANCEMENT; SYSTEM; DISPLACEMENT
Addresses: Ziauddin; Qamar, Sajid; Zubairy, M. Suhail] COMSATS Inst Informat Technol, Ctr Quantum Phys, Islamabad, Pakistan; [Zubairy, M. Suhail] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA; [Zubairy, M. Suhail] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
Reprint Address: Ziauddin, COMSATS Inst Informat Technol, Ctr Quantum Phys, Islamabad, Pakistan.
Funding Agency: Qatar National Research Fund (QNRF)
Publisher: AMER PHYSICAL SOC
Publisher Address: ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN: 1050-2947
29-char Source Abbrev.: PHYS REV A
ISO Source Abbrev.: Phys. Rev. A
Subject Category: Optics; Physics, Atomic, Molecular & Chemical
ISI Document Delivery No.: 562RW
