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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-204 |
| Subject |
White-light interferometer for measurement of dispersive properties of optical setups |
| Authors |
Jungsoo Ahn, Taiha Joo*
Department of Chemistry, Pohang University of Science and Technology, Korea
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| Abstract |
An accurate determination of dispersive properties of an optical system is one of the crucial point in the field of femtosecond spectroscopy. Group velocity dispersion (GVD), and third order dispersion (TOD) are representative dispersive properties when about tens of femtosecond temporal width of pulse needed. Measuring exact GVD and TOD of optical system facilitates us to generate or retain pulses in femtosecond regime through the whole optical system. For this reason, there have been various white-light interferomter setups, generally equipped with halogen lamp as incoherent white-light source, as a method of measuring the dispersive properties. In this work, we show improved way to measure GVD and TOD of fairly complex setup. Measured GVD of UV fused silica window, and broadband oscillation compensated chirped mirror pairs is shown as an example of accuracy of the measurement. In addition to that, the GVD of cryostat also shown as another point of the interferometry, the complexity of possible measurement. |
| E-mail |
jungsoo.chem@gmail.com |
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121st General Meeting of the KCS