Ghost imaging with intense fields from chaotically seeded parametric downconversion.
نویسندگان
چکیده
We present the first experimental demonstration, to the best of our knowledge, of ghost imaging realized with intense beams generated by a parametric downconversion interaction seeded with pseudothermal light. As expected, the real image of the object is reconstructed satisfying the thin-lens equation. We show that the experimental visibility of the reconstructed image is in accordance with the theoretically expected one.
منابع مشابه
Correlated imaging visibility using a parametric downconversion source seeded with partially coherent stimulation
We have studied a correlated imaging scheme using parametric downconversion stimulated with a partially coherent beam as a source. We analyze the dependence of quantum spatial correlations and image reconstruction features on the crystal length, the coherence length, and the transverse size of the seed beam in lowand high-gain regimes of parametric downconversion. We show that the visibility of...
متن کاملPhase-sensitive light: coherence theory and applications to optical imaging
Spontaneous parametric downconversion (SPDC) can produce pairs of entangled photons, i.e., a stream of biphotons. SPDC has been utilized in a number of optical imaging applications, such as optical coherence tomography, ghost imaging, holography and lithography, to obtain performance that cannot be realized with standard optical sources. However, a debate continues as to whether the improved im...
متن کاملParametric downconversion vs optical parametric amplification: a comparison of their quantum statistics
The extent to which the intense light generated by an unseeded, high-gain optical parametric ampli®er retains the desired quantum statistical properties of the individual photon pairs generated by spontaneous parametric downconversion is analysed. It is shown that certain but not all of these properties are retained, with important implications for applications of quantum optics.
متن کاملnt - p h / 97 12 05 0 v 1 2 1 D ec 1 99 7 The zeropoint field — no longer a ghost .
We develop a local realist analysis of parametric down conversion, based on the recognition that the pump field, instead of down converting spontaneously, does so through its nonlinear coupling with a real zeropoint, or “vacuum” electromagnetic field. The theory leads to the prediction of a new phenomenon — that, in addition to the main downconversion rainbow, there is a satellite rainbow, whos...
متن کاملQuantum and classical correlations of intense beams of light via joint photodetection
We address joint photodetection as a method to discriminate between the classical correlations of a thermal beam divided by a beam splitter and the quantum entanglement of a twin-beam obtained by parametric downconversion. We show that for intense beams of light the detection of the difference photocurrent may be used, in principle, in order to reveal entanglement, while the simple measurement ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Optics letters
دوره 32 9 شماره
صفحات -
تاریخ انتشار 2007