scholarly journals Relaxation time broadening on emission spectrum of a Zn‐dopedp‐type GaAs injection laser

1983 ◽  
Vol 43 (9) ◽  
pp. 818-820 ◽  
Author(s):  
Minoru Yamada ◽  
Akira Tanaka ◽  
Kiyoshi Moriya ◽  
Yuichi Kado
Keyword(s):  
Relaxation Time ◽  
Emission Spectrum ◽  
Injection Laser

Asymmetric emission spectrum of an injection laser with an external optical feedback

1988 ◽  
Vol 18 (2) ◽  
pp. 156-160
Author(s):  
Yurii V Gulyaev ◽  
V P Duraev ◽  
A V Mazur ◽  
Sergey K Morshnev ◽  
A S Ryabov ◽  
...  
Keyword(s):  
Emission Spectrum ◽  
Optical Feedback ◽  
Injection Laser

Estimation of the Intra-Band Relaxation Time in Undoped AlGaAs Injection Laser

1980 ◽  
Vol 19 (1) ◽  
pp. 135-142 ◽  
Author(s):  
Minoru Yamada ◽  
Hisanori Ishiguro ◽  
Hitoshi Nagato
Keyword(s):  
Relaxation Time ◽  
Injection Laser

Influence of output intensity pulsations on the emission spectrum of an injection laser

1972 ◽  
Vol 1 (4) ◽  
pp. 389-392 ◽  
Author(s):  
Yu P Zakharov ◽  
V A Kovalenko ◽  
V F Litvinov ◽  
V N Morozov ◽  
V V Nikitin ◽  
...  
Keyword(s):  
Emission Spectrum ◽  
Injection Laser ◽  
Output Intensity

Influence of microwave modulation on the emission spectrum of an injection laser

1974 ◽  
Vol 4 (1) ◽  
pp. 86-87 ◽  
Author(s):  
P G Eliseev ◽  
L P Ivanov ◽  
Aleksandr S Logginov ◽  
K Ya Senatorov
Keyword(s):  
Emission Spectrum ◽  
Injection Laser ◽  
Microwave Modulation

Kinetics of the emission spectrum of an injection laser and collapse of single-mode emission

1974 ◽  
Vol 3 (5) ◽  
pp. 372-375 ◽  
Author(s):  
Alexandr P Bogatov ◽  
P G Eliseev ◽  
L P Ivanov ◽  
Aleksandr S Logginov ◽  
K Ya Senatorov
Keyword(s):  
Emission Spectrum ◽  
Single Mode ◽  
Injection Laser ◽  
Kinetics Of

scholarly journals Mesosphere Ozone and the Lower Ionosphere under Plasma Disturbance by Powerful High-Frequency Radio Emission

Atmosphere ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1154
Author(s):  
Nataliya V. Bakhmetieva ◽  
Yuri Yu. Kulikov ◽  
Ilia N. Zhemyakov
Keyword(s):  
Relaxation Time ◽  
Radio Emission ◽  
Emission Spectrum ◽  
High Frequency ◽  
Lower Boundary ◽  
Lower Ionosphere ◽  
Electron Attachment ◽  
Vertical Movement ◽  
D Region ◽  
Powerful High Frequency

We present the results of experiments on the Earth’s lower ionosphere at mesospheric heights by creating artificial periodic irregularities (APIs) of the ionospheric plasma and simultaneous measurement of the atmospheric emission spectrum in the ozone line by ground-based microwave radiometry when the ionosphere was disturbed by powerful high-frequency radio emission from the midlatitude SURA heating facility (56.15° N; 46.11° E). The diagnostics of the ionosphere was carried out on the basis of measuring amplitudes and phases of signals scattered by periodic irregularities in the altitude range of 50–130 km. For each heating session lasting 30 min, two ozone spectra were measured. These spectra were compared with the measured spectra the periods when heating was turned off. During the heating session of the ionosphere, a decrease in the intensity of the microwave radiation of the atmosphere in the ozone line was observed. The lower ionosphere was characterized by intense dynamics. Rapid variations in the amplitude of the scattered signal and the relaxation time of artificial periodic irregularities were observed. The velocity of a regular vertical movement in the D-region of the ionosphere constantly varied direction with average minute values up to 4–5 m/s. We assume the decrease in the ozone emission spectrum at the altitude of 60 km can be explained by an increase in the coefficient of electron attachment to oxygen molecules during heating sessions. The lower boundary of the region enriched with atomic oxygen was estimated from the height profile of the API relaxation time.

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