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학술발표회초록보기

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  • 09월 01일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Group velocity dispersion measurement for time-zero correction of time-resolved fluorescence spectra

등록일
2016년 9월 1일 13시 46분 28초
접수번호
2359
발표코드
PHYS.P-441 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 13일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
안정수, 주태하*
POSTECH 화학과, Korea
Fluorescence upconversion is a well-known method to obtain time-resolved fluorescence (TRF) signals or TRF spectra. TRF spectra enables us to capture the excited state dynamics of molecules with less ambiguity than TRF signals. Identifying the exact time-zero position for each detection wavelength prevent the spectra from distortions, when the TRF spectra are scanned in a direct way with high time resolution. Group velocity dispersion (GVD) can play a critical role in the dispersion of time-zero positions for each wavelength component. In this work, we report a direct way to measure the effect of GVD on fluorescence at the fluorescence upconversion apparatus. Measuring the GVD in a direct way allows us to know the dispersion of the time-zero positions of the upconversion apparatus with various modifications. We measured the GVD of a part of the apparatus with a modification in that a cryostat is used as a sample cell, exemplifying the way to utilize the measurement for obtaining the TRF spectra in a modified condition.

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