+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Stationary Fourier-transform spectrometer

, : Stationary Fourier-transform spectrometer. Applied Optics 31(21): 4106-4112

The performance and the characteristics of an interferometric double-mirror spectrometer with uncollimated light are studied by measuring spectra of different radiation sources. The stationary interferometer is fabricated without a beam splitter or moving components. The measured interferogram visibilities, which are limited by the size of the source aperture, agree with the theoretical predictions for a slit and a circular source aperture. By background subtraction the effect of detection nonuniformity can be radically reduced to increase the dynamics and the resolving power of the spectrometer. We used a mercury pencil lamp for measurement and found that the dynamic range was ~80 dBm. When isolated spectral lines are measured, the resolving power can be improved by squeezing more than half of a spatial interference cycle onto one pixel. The maximum resolving power reached in measuring the spectra of a diode laser was 1600. The instrument is applicable to a wide range of measurements, such as the recording of temporally variant, wideband radiation sources and the monitoring of laser wavelength.


PMID: 20725388

Other references

Bergmann, K.; Foster, E.M.; Justice, A.W.; Matthews, V., 1978: Management of the demented elderly patient in the community. Eighty-three consecutive patients with organic mental disorder were studied on their first admission to a psychiatric day hospital assessment unit in a general hospital. They were evaluated medically, psychiatrically and by social work, re-evaluat...

Li, L.; Yi, X.; Huang, T.X.H.; Minasian, R.A., 2012: Distortion-free spectrum sliced microwave photonic signal processor: analysis, design and implementation. A new switchable microwave photonic filter based on a novel spectrum slicing technique is presented. The processor enables programmable multi-tap generation with general transfer function characteristics and offers tunability, reconfigurabiliy, an...

Yin, A.X.; Park, G.H.; Garnett, G.M.; Balfour, J.F., 2012: Chilaiditi syndrome precipitated by colonoscopy: a case report and review of the literature. Chilaiditi syndrome is a rare condition defined by the presence of gastrointestinal symptoms associated with the radiological finding of segmental interposition of the bowel between the liver and the diaphragm. While it is infrequently indentified...

Beighton, P., 1986: Osteoporosis-pseudoglioma syndrome. Clinical Genetics 29(3): 263-263

Keller, M.A.; Saba, C.S., 1996: Oxidative stability and degradation mechanism of a cyclotriphosphazene lubricant. Chromatographic and spectroscopic techniques were used to investigate the degradation products from bulk oxidative and thermal stability testing of a substituted tricyclophosphazene high-temperature lubricant. Analytical investigation into the deg...

Goldmann, J., 1971: Chemical composition of the embryotrophe of the cow.. Embryotrophe was obtained from 45 Black Pied, Red Pied and Yellow slaughter cows, between 15 and 171 days pregnant, and the proportions of the following constituents were determined: urea, total protein, triglycerides (total, free and ester glycer...

Mathew, J.L.; Singh, M., 2008: Evidence based child health: fly but with feet on the ground. Indian Pediatrics 45(2): 95-98

Turner, K.J.; Morley, M.; Sharpe, R.M., 1998: Effect of an aromatase inhibitor on circulating hormones and spermatogenesis in the adult rat. Journal of Endocrinology 156(SUPPL ): P259, March

Suzuki, M.; Kitamura, K.; Uyemura, K.; Ogawa, Y.; Nozaki, S.; Muramatsu, I., 1984: Synthesis and neuritogenic activity of the peptides related to P2 protein. Progress in Clinical and Biological Research 146: 487-492

Huang, C.H.; Chu, F.T.; Chia, P.Y.; Lin, C.C.; Tseng, Y., 1962: Influence of placental globulin on clinical and immunologic effects of the vaccine. Chinese Medical Journal 81: 15-22