scholarly journals Frequency Difference Thermally and Electrically Tunable Dual-Frequency Nd:YAG/LiTaO3 Microchip Laser

2019 ◽  
Vol 9 (10) ◽  
pp. 1969 ◽  
Author(s):  
Kun Gui ◽  
Zilong Zhang ◽  
Yuxiao Xing ◽  
Haiyang Zhang ◽  
Changming Zhao
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Frequency Tuning ◽  
Beat Frequency ◽  
Longitudinal Mode ◽  
Microchip Laser ◽  
Frequency Difference ◽  
Dual Frequency ◽  
Yttrium Aluminum ◽  
Lock In ◽  
Nd:Yag Crystal

This study presents a dual-frequency microchip laser with a thermo-optically and electro-optically tuned frequency difference. The dual-frequency microchip cavity is formed by bonding a Lithium tantalite (LiTaO3, LTO) crystal chip and a neodymium-doped yttrium aluminum garnet (Nd:YAG) crystal chip. A single longitudinal mode is generated by the Nd:YAG crystal and split into two frequencies with perpendicular polarizations due to birefringent effect in the LTO chip. Furthermore, continuous beat frequency tuning at different scales is realized by adjusting the temperature and voltage applied to the LTO crystal. A maximum beat frequency of up to 27 GHz is obtained, and the frequency difference lock-in phenomenon is observed below the frequency difference of 405 MHz.

Dual-frequency solid-state microchip laser and its frequency difference control

2019 ◽  
Vol 58 (11) ◽  
pp. 1
Author(s):  
Jiyang Li ◽  
Yidong Tan ◽  
Kaiyi Zhu ◽  
Yueyue Lu ◽  
Shulian Zhang
Keyword(s):  
Solid State ◽  
Microchip Laser ◽  
Frequency Difference ◽  
Dual Frequency

Design of Cube Coil-Pair to Restrain Lock-In and Detuning of Frequency Difference with Y-Shaped Dual-Frequency Laser

2016 ◽  
Vol 53 (3) ◽  
pp. 031407
Author(s):  
傅杨颖 Fu Yangying ◽  
肖光宗 Xiao Guangzong ◽  
龚梦帆 Gong Mengfan ◽  
张斌 Zhang Bin
Keyword(s):  
Frequency Difference ◽  
Dual Frequency ◽  
Frequency Laser ◽  
Lock In

Frequency difference lock-in phenomenon’s weakening by transverse magnetic field in Y-shaped cavity dual-frequency laser

2015 ◽  
Vol 13 (11) ◽  
pp. 111405-111408 ◽  
Author(s):  
Guangzong Xiao Guangzong Xiao ◽  
Bin Zhang Bin Zhang ◽  
Zhiguo Wang Zhiguo Wang ◽  
Yangying Fu Yangying Fu ◽  
and Mengfan Gong and Mengfan Gong
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Transverse Magnetic ◽  
Frequency Difference ◽  
Dual Frequency ◽  
Frequency Laser ◽  
Lock In

scholarly journals Thermally induced frequency difference characteristics of dual-frequency microchip laser used optical generation millimeter-wave

2013 ◽  
Vol 62 (20) ◽  
pp. 204205
Author(s):  
Hu Miao ◽  
Zhang Hui ◽  
Zhang Fei ◽  
Liu Chen-Xi ◽  
Xu Guo-Rui ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Microchip Laser ◽  
Frequency Difference ◽  
Dual Frequency ◽  
Thermally Induced ◽  
Optical Generation

Yag Single Crystals for Scintillators of Stem

1990 ◽  
Vol 48 (1) ◽  
pp. 166-167
Author(s):  
M. Hibino ◽  
K. Irie ◽  
R. Autrata ◽  
P. schauer
Keyword(s):  
Single Crystals ◽  
Yttrium Aluminum Garnet ◽  
Light Guide ◽  
Detection System ◽  
Polished Surface ◽  
Detective Quantum Efficiency ◽  
Backscattered Electrons ◽  
Electron Detection ◽  
Yttrium Aluminum ◽  
Phosphor Screens

Although powdered phosphor screens are usually used for scintillators of STEM, it has been found that the phosphor screen of appropriate thickness should be used depending on the accelerating voltage, in order to keep high detective quantum efficiency. 1 It has been also found that the variation in sensitivity, due to granularity of phosphor screens, makes the measurement of fine electron probe difficult and that the sensitivity reduces with electron irradiation specially at high voltages.In order to find out a preferable scintillator for STEM, single crystals of YAG (yttrium aluminum garnet), which are used for detecting secondary and backscattered electrons in SEM were investigated and compared with powdered phosphor screens, at the accelerating voltages of 100kV and 1 MV. A conventional electron detection system, consisting of scintillator, light guide and PMT (Hamamatsu Photonics R268) was used for measurements. Scintillators used are YAG single crystals of 1.0 to 3.2mm thicknesses (with surfaces matted for good interface to the light guide) and of 0.8mm thickness (with polished surface), and powdered P-46 phosphor screens of 0.07mm and 1.0mm thicknesses for 100kV and 1MV, respectively. Surfaces on electron-incidence side of all scintillators are coated with reflecting layers.

scholarly journals Preparation of Ce-doped yttrium aluminum garnet phosphor particles using spray drying method

2020 ◽  
pp. 1-8
Author(s):  
Shao-Ju Shih ◽  
Lewi Peter Richardo ◽  
Kevin Indrawan Sucipto ◽  
Zhi-Meng Wang
Keyword(s):  
Spray Drying ◽  
Yttrium Aluminum Garnet ◽  
Drying Method ◽  
Yttrium Aluminum
Sign in / Sign up

Export Citation Format

Share Document