Control of the Goos-Hanchen shift using an Atomic Medium with Electromagnetically Induced Transparency
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CIIT
Mr. Ziauddin,
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Details of this week's seminar follow. Please note the changed day and time -
THURSDAY, 02:30 PM - which will apply to all weekly seminars from now on, as
notified last week.
Day, date and time: THURSDAY, Sep 20, 2012, 02:30 PM
Speaker: Mr. Ziauddin
Venue: Seminar Hall, Academic Block I
Control of the Goos-Hanchen shift using an Atomic Medium with Electromagnetically Induced Transparency
Abstract: 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 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.
Please ensure your and your students' attendance. Tea and cookies will be served at the end of the seminar, as usual.
Details of this week's seminar follow. Please note the changed day and time -
THURSDAY, 02:30 PM - which will apply to all weekly seminars from now on, as
notified last week.
Day, date and time: THURSDAY, Sep 20, 2012, 02:30 PM
Speaker: Mr. Ziauddin
Venue: Seminar Hall, Academic Block I
Control of the Goos-Hanchen shift using an Atomic Medium with Electromagnetically Induced Transparency
Abstract: 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 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.
Please ensure your and your students' attendance. Tea and cookies will be served at the end of the seminar, as usual.
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Seminar
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