Details
| Original language | English |
|---|---|
| Pages (from-to) | 821-831 |
| Number of pages | 11 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 70 |
| Issue number | 2-6 |
| Publication status | Published - Jun 2000 |
Abstract
We present a novel spectroscopic method based on a phase-modulated interferometer which is suitable for the high-precision measurement of absorption and index of refraction profiles. A comparison with competing methods, that is with interferometry and FM spectroscopy, is given. The combination of these two methods, the phase-modulated interferometer, is shown to be best suited for experiments aiming at the realization of novel optical media, for example media exhibiting an ultra-large index of refraction or strong dispersion without absorption. The theory of operation and a theoretical and experimental signal-to-noise analysis are presented. Current detection limits for optical phase shift and relative absorption are 1.1 × 10-5rad/√Hz and 2 × 10-5 / √Hz, respectively. We demonstrate the effectiveness of this novel technique by investigating the absorption and index of refraction profiles of the 4s2 1S0 → 4s4p 1P1 resonance transition at 423 nm in calcium.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Applied Physics B: Lasers and Optics, Vol. 70, No. 2-6, 06.2000, p. 821-831.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A phase-modulated interferometer for high-precision spectroscopy
AU - Wicht, A.
AU - Müller, M.
AU - Quetschke, V.
AU - Rinkleff, R. H.
AU - Rocco, A.
AU - Danzmann, K.
PY - 2000/6
Y1 - 2000/6
N2 - We present a novel spectroscopic method based on a phase-modulated interferometer which is suitable for the high-precision measurement of absorption and index of refraction profiles. A comparison with competing methods, that is with interferometry and FM spectroscopy, is given. The combination of these two methods, the phase-modulated interferometer, is shown to be best suited for experiments aiming at the realization of novel optical media, for example media exhibiting an ultra-large index of refraction or strong dispersion without absorption. The theory of operation and a theoretical and experimental signal-to-noise analysis are presented. Current detection limits for optical phase shift and relative absorption are 1.1 × 10-5rad/√Hz and 2 × 10-5 / √Hz, respectively. We demonstrate the effectiveness of this novel technique by investigating the absorption and index of refraction profiles of the 4s2 1S0 → 4s4p 1P1 resonance transition at 423 nm in calcium.
AB - We present a novel spectroscopic method based on a phase-modulated interferometer which is suitable for the high-precision measurement of absorption and index of refraction profiles. A comparison with competing methods, that is with interferometry and FM spectroscopy, is given. The combination of these two methods, the phase-modulated interferometer, is shown to be best suited for experiments aiming at the realization of novel optical media, for example media exhibiting an ultra-large index of refraction or strong dispersion without absorption. The theory of operation and a theoretical and experimental signal-to-noise analysis are presented. Current detection limits for optical phase shift and relative absorption are 1.1 × 10-5rad/√Hz and 2 × 10-5 / √Hz, respectively. We demonstrate the effectiveness of this novel technique by investigating the absorption and index of refraction profiles of the 4s2 1S0 → 4s4p 1P1 resonance transition at 423 nm in calcium.
UR - http://www.scopus.com/inward/record.url?scp=85084772017&partnerID=8YFLogxK
U2 - 10.1007/pl00021141
DO - 10.1007/pl00021141
M3 - Article
AN - SCOPUS:85084772017
VL - 70
SP - 821
EP - 831
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 2-6
ER -