دراسة طيفية لنقلِ الطاقةِ والعملياتِ المتنافسةِ في أصباغِ الليزر (كومارين 522 و رودامين 101)
The transfer of excitation energy between the molecules of compounds is aneffective and important phenomenon in extensive application, and particularly inthe development of dye laser. The energy transfer between two lasingcompound, Coumarin 522 (donor) and Rhodamine 101 (acceptor) has beeninvestigat...
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
Unviversity of Technology- Iraq
2008-05-01
|
| Series: | Engineering and Technology Journal |
| Online Access: | https://etj.uotechnology.edu.iq/article_26555_9b3aeba6248349aa05ff227033bf3743.pdf |
| Summary: | The transfer of excitation energy between the molecules of compounds is aneffective and important phenomenon in extensive application, and particularly inthe development of dye laser. The energy transfer between two lasingcompound, Coumarin 522 (donor) and Rhodamine 101 (acceptor) has beeninvestigated in order to achieve the operational conditions for efficient lasing atdesired wavelengths. Absorption spectrum of each compound of differentconcentrations (10-4-10-6) molarty with ethanol at room temperature were measuredprior to and after mixing. Wide absorption spectral bandwidth was observed in themixture that increasing concentration shifts the absorption spectrum peak towardslonger wavelengths.The maximum absorption bandwidths in the mixture rangingbetween (340-650)nm were obtained at concentrations (10-4) molarty for eachcompound with a mixing ratio (1:1) depending on the donor concentrations. Thisrange provides a wide – scale pumping source for lasers |
|---|---|
| ISSN: | 1681-6900 2412-0758 |