1992 Fiscal Year Final Research Report Summary
TWO-PHOTON CORRELATION MEASUREMENTS OF NON-CLASSICAL LIGHT AND ITS APPLICATIONS OF ULTRAFAST SPECTROSCOPY
| Project/Area Number |
03640344
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
物理学一般
|
|---|
| Research Institution | THE UNIVERSITY OF TOKYO |
|---|
Principal Investigator |
KUGA Takahiro UNIV.OF TOKYO, COLLEGE OF ARTS AND SCIENCES, ASSOCIATE PROFESSOR, 教養学部, 助教授 (60195419)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
BABA Motoyoshi UNIV.OF TOKYO, INST.FOR SOLID STATE PHYSICS, RESEARCH ASSOCIATE, 物性研究所, 教務職員 (60159077)
MATSUOKA Masahiro UNIV.OF TOKYO, INST.FOR SOLID STATE PHYSICS, PROFESSOR, 物性研究所, 教授 (10013476)
|
|---|
| Project Period (FY) |
1991 – 1992
|
| Keywords | Parametric Fluorescence / Squeezed Light / Non-linear Optics / Ultrafast Spectroscopy / Two-Photon Intensity Correlation / Intensity Interference |
|---|
| Research Abstract |
We have invcstigated statistical characters of a squeezed pulse train by two-photon coincidenec counting. We have also measured a pulsc duration of a weak picosccond pulscs by using an interferometer and counting technique. The results are listed below.
1. We have performed two-photon coincidence counting measurements of a squeezed pulse train from a parametric amplifier pumped by a continuous-wave mode-locked laser. The intensity correlation function at zcro time dclay can determined by measuring the ratio of two types of the coincidences, the one within the same mode-locked pulse and the one among different pulses. lambda single mode analysis of the intensity correlation function g^<(2)> (O) is made to explain the experimental resuits.
2. We have developed a new two-photon interference scheme for measuring the coherence time and pulse width of ultrafast pulses. Experiments have been performed with the output pulses of a cw mode-locked dye laser, with results in good agreement with the conventional second-harmonic autocorrclation mcasurement.
|
