Dual-amplified spontaneous emission from 7-diethyl amino-4-methyl coumarin (DAMC) laser dye under picosecond pumping

1996 ◽  
Author(s):  
L. Vetrivel ◽  
B. M. Sivaram
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Laser Dye

scholarly journals Spectral and ASE Properties of 1-(4-Methylsulfonyl Phenyl)-3-(4-N, N Dimethyl Amino Phenyl)-2-Propen-1-One (MSPPP)

2021 ◽  
Author(s):  
Mohana University ◽  
Abdelrahman A. Elbadawi ◽  
K.H. Ibnaouf
Keyword(s):  
Quantum Yield ◽  
Spontaneous Emission ◽  
Fluorescence Spectra ◽  
Laser Excitation ◽  
Stokes Shift ◽  
Amplified Spontaneous Emission ◽  
Wavelength Band ◽  
Laser Dye ◽  
Energy Band Gap ◽  
Pulse Laser Excitation

Abstract This work demonstrates the spectral and amplified spontaneous emission (ASE) properties of a new chalcone laser dye material of 1-(4-methylsulfonyl phenyl)-3-(4-N, N dimethyl amino phenyl)-2-propen-1-one (MSPPP). The absorption, fluorescence, Stokes’ shift and quantum yield were obtained using different organic solvents. The energy band gap was calculated and compared with that of 3-[4-(dimethylamino) phenyl]-1-phenyl-(2E)-propen- 1-one (DAPPP). These include absorption, fluorescence, stokes shift, and amplified spontaneous emission (ASE). The absorption spectra of MSPPP showed a wavelength band in the range 403–427 nm, whereas the fluorescence spectra exhibited a band at 472–533 nm. ASE was observed under pump pulse laser excitation, and the wavelengths were attuned from 511 to 548 nm.

High-resolution amplified spontaneous emission (ASE) gain spectroscopy to study excited state complexation

1991 ◽  
Vol 69 (12) ◽  
pp. 2142-2149 ◽  
Author(s):  
R. W. Yip ◽  
Y-X. Wen
Keyword(s):  
Excited State ◽  
Steady State ◽  
High Resolution ◽  
Key Words ◽  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Frequency Resolution ◽  
Laser Dye ◽  
Weakly Bound ◽  
Laser Gain

Weakly bound excited state complexes involving 7-diethylamino-4-methylcoumarin have been studied by ASE gain spectroscopy to explore the applicability of the method for studying excited state complexation. Comparative steady state spectrofluorometric and ASE gain measurements showed that ASE gain measurements are capable of giving information on excited state complexation of the laser dye but with greater ease and frequency resolution. Key words: excited state complex, amplified spontaneous emission, laser gain, ASE gain spectroscopy

Violet-Emitting Distributed-Feedback Laser using a Naphtho[2,1-b:6,5-b']difuran Derivative

2021 ◽  
Author(s):  
Hayato Tsuji ◽  
Akihiro Shitomi ◽  
Naoto Hamaguchi ◽  
Yasunobu Egawa ◽  
Victor Bonal Díaz ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Distributed Feedback ◽  
Laser Dye ◽  
Distributed Feedback Laser

A naphtho[2,1-b:6,5-b']difuran derivative was found to serve as an effective violet-emitting laser dye. It showed amplified spontaneous emission at 413 nm with the threshold of 1.1-2.9 mJ cm-2 using 0.1-0.5...

Effect of Molecular Morphology on Amplified Spontaneous Emission of Bis-Styrylbenzene Derivatives

2009 ◽  
Vol 21 (40) ◽  
pp. 4034-4038 ◽  
Author(s):  
Ryota Kabe ◽  
Hajime Nakanotani ◽  
Tomo Sakanoue ◽  
Masayuki Yahiro ◽  
Chihaya Adachi
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Molecular Morphology
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