scholarly journals Superlinear emission in bare perovskite: amplified spontaneous emission in disordered film versus single crystal lasing

2017 ◽  
Vol 4 ◽  
pp. S12-S18
Author(s):  
F. Biccari ◽  
A. Ristori ◽  
F. Gabelloni ◽  
C. Francioni ◽  
F. La China ◽  
...  
Keyword(s):  
Single Crystal ◽  
Spontaneous Emission ◽  
Amplified Spontaneous Emission

scholarly journals Amplified Spontaneous Emission and Optical Gain in Organic Single Crystal Quinquethiophene

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 609 ◽  
Author(s):  
Muhammad Zeb ◽  
Muhammad Tahir ◽  
Fida Muhammad ◽  
Suhana Mohd Said ◽  
Mohd Faizul Mohd Sabri ◽  
...  
Keyword(s):  
Single Crystal ◽  
Spontaneous Emission ◽  
Threshold Energy ◽  
Pump Energy ◽  
Optical Gain ◽  
Amplified Spontaneous Emission ◽  
Stimulated Emission ◽  
Excitation Wavelength ◽  
Optical Amplification ◽  
Organic Single Crystal

In this paper, we report optical characteristics of an organic single crystal oligomer 5,5⁗-diphenyl-2,2′:5′,2″:5″,2‴:5‴,2⁗-quinquethiophene (P5T). P5T crystal is a thiophene/phenylene co-oligomer that possesses better charge mobility as well as photoluminescence quantum efficiency (PLQE) as compared to other organic materials. Stimulated emission in P5T is investigated via amplified spontaneous emission (ASE) measurements within broad pump energies ranging from 35.26 to 163.34 µJ/cm2. An Nd-YAG femtosecond-tunable pulsed laser is used as a pump energy source for the ASE measurements of P5T crystals at an excitation wavelength of 445 nm. The ASE spectra exhibit optical amplification in P5T crystals at a 625 nm peak wavelength with a lower threshold energy density (Eth) ≈ 52.64 μJ/cm2. P5T also demonstrates higher optical gain with a value of 72 cm−1, that is calculated by using the variable stripe-length method. The value of PLQE is measured to be 68.24% for P5T. This study proposes potential applications of P5T single crystals in organic solid state lasers, photodetectors, and optical amplifiers.

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

scholarly journals Origin of Intramolecular Low‐Threshold Amplified Spontaneous Emission

2021 ◽  
pp. 2001956
Author(s):  
Qi Wei ◽  
Ruihong Duan ◽  
Qi Zhang ◽  
Linghai Xie ◽  
Ruidong Xia ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Low Threshold

Conformationally restricted 2,5-diphenyloxazoles: failure of the electromer model for anomalous amplified spontaneous emission spikes

2006 ◽  
Vol 104 (5-7) ◽  
pp. 957-969 ◽  
Author(s):  
J. Saltiel ◽  
R. A. Ivanov ◽  
D. A. Gormin ◽  
T. S. R. Krishna ◽  
R. J. Clark
Keyword(s):  
Spontaneous Emission ◽  
Amplified Spontaneous Emission ◽  
Conformationally Restricted
Sign in / Sign up

Export Citation Format

Share Document