Study of Coupling Mechanism of Optical and Acoustic Energy in the Time Resolved Pulsed Photoacoustic Spectrum Of I2 Molecules at Different Temperature and Pressure
| المصدر: | مجلة جامعة البيضاء |
|---|---|
| الناشر: | جامعة البيضاء |
| المؤلف الرئيسي: | Yahya, F (Author) |
| مؤلفين آخرين: | Chaudhary, A. K. (Co-Author) |
| المجلد/العدد: | مج3, ع2 |
| محكمة: | نعم |
| الدولة: |
اليمن |
| التاريخ الميلادي: |
2021
|
| الشهر: | أغسطس |
| الصفحات: | 9 - 17 |
| ISSN: |
2709-9695 |
| رقم MD: | 1319395 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | EduSearch, HumanIndex |
| مواضيع: | |
| كلمات المؤلف المفتاحية: |
Photoacoustic | Modes | Vibronic | Pulsed Laser
|
| رابط المحتوى: |
| المستخلص: |
The paper reports the time resolved pulsed photo acoustic study of I2 molecules using a single 532 nm, pulses of 7 ns duration at 10 Hz repetition rate obtained from Q- switched Nd: YAG laser. Frank -Condon principle based assignments confirms the presence of several numbers of (ν"- ν') vibrational transitions covered by a single 532 + 2nm pulse profile. The strongest vibronic transition lines correspond to (32-0) and (31-0) transitions have the maximum intensities and part of equally separated bandwidth of the laser pulse. These strongest acoustic modes of I2 molecules are located at 4000 Hz and 14650 Hz, respectively. The separation of frequency between these two strongest modes is of the order of 10650 Hz. The experiment was repeated with different sized PA cell and found once again that two strongest acoustic modes of I2 molecules occur at 10.75 KHz and 21.45 KHz frequency range are separated by 10650 Hz only. For the first time, our experimental findings confirm that the frequency of the excited modes are controlled by cavity dimension whereas separation between the two strongest cavity modes are governed by the laser pulse profile. Moreover, the pressure and temperature based study demonstrates the exchange energy mechanism between the excited acoustic modes inside the PA cavity. |
|---|---|
| ISSN: |
2709-9695 |
عناصر مشابهة
-
Time Resolved Pulsed Photoacoustic Spectroscopy of Formaldehyde Molecules at 266 nm
بواسطة: Yahya, F منشور: (2021) -
Optical Solition Pulses in Long Haul Communication
بواسطة: Maaz, Samah Asim Babiker منشور: (2018) -
Effect of Er2O3 and ErF3 on the Optical Properties of Sodium Oxyfluoroborate Glasses
بواسطة: Z., Hager Ibrahim منشور: (2022) -
Study of the Impact of some Inorganic Ions on the Photocatalytic Activity of Tio2
بواسطة: Fathizatidjani, Oussama منشور: (2020) -
OPTIACL REFLECTANCE AND TRANSMITTANCE OF BISMUTH TRIIODIDE THIN FILMS PREPARED BY FLASH EVAPORATION METHOD AT DIFFERENT SUBSTRATE TEMPERATURES
بواسطة: Al Mohaisen, Wasan Jamal J. منشور: (2014)
