scholarly journals Smart-cut-like laser slicing of GaN substrate using its own nitrogen

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Atsushi Tanaka ◽  
Ryuji Sugiura ◽  
Daisuke Kawaguchi ◽  
Toshiki Yui ◽  
Yotaro Wani ◽  
...  
Keyword(s):  
Nanosecond Laser ◽  
High Quality ◽  
Slicing Method ◽  
532 Nm

AbstractWe have investigated the possibility of applying lasers to slice GaN substrates. Using a sub-nanosecond laser with a wavelength of 532 nm, we succeeded in slicing GaN substrates. In the laser slicing method used in this study, there was almost no kerf loss, and the thickness of the layer damaged by laser slicing was about 40 µm. We demonstrated that a standard high quality homoepitaxial layer can be grown on the sliced surface after removing the damaged layer by polishing.

Error analysis in 532 nm nanosecond laser cutting of solar glass

Optik ◽  
2021 ◽  
Vol 231 ◽  
pp. 166451
Author(s):  
Haoyu Dong ◽  
Yu Huang ◽  
Wenyuan Li ◽  
Jianyao Li ◽  
Youmin Rong
Keyword(s):  
Error Analysis ◽  
Laser Cutting ◽  
Nanosecond Laser ◽  
532 Nm

Surface microstructures and photoluminescence characteristics of monocrystalline sillicon irradiated by 532 nm nanosecond laser

2012 ◽  
Vol 24 (11) ◽  
pp. 2599-2603
Author(s):  
常利阳 Chang Liyang ◽  
李晓红 Li Xiaohong ◽  
邱荣 Qiu Rong ◽  
王俊波 Wang Junbo
Keyword(s):  
Nanosecond Laser ◽  
Surface Microstructures ◽  
532 Nm

532 nm Nanosecond laser cutting solar float glass: Surface quality evaluation with different laser spot positions in field lens

Optik ◽  
2020 ◽  
Vol 223 ◽  
pp. 165620
Author(s):  
Haoyu Dong ◽  
Yu Huang ◽  
Youmin Rong ◽  
Chunmeng Chen ◽  
Wenyuan Li ◽  
...  
Keyword(s):  
Surface Quality ◽  
Glass Surface ◽  
Laser Cutting ◽  
Quality Evaluation ◽  
Float Glass ◽  
Laser Spot ◽  
Nanosecond Laser ◽  
532 Nm

Optical limiting properties of BODIPY dyes substituted with styryl or vinylene groups on the nanosecond timescale

2019 ◽  
Vol 23 (07n08) ◽  
pp. 701-717 ◽  
Author(s):  
Nobuhle Ndebele ◽  
Zweli Hlatshwayo ◽  
Bokolombe P. Ngoy ◽  
Gugu Kubheka ◽  
John Mack ◽  
...  
Keyword(s):  
Thin Films ◽  
Absorption Coefficient ◽  
Laser Pulses ◽  
Optical Limiting ◽  
Nanosecond Laser ◽  
Third Order ◽  
The Third ◽  
Nanosecond Laser Pulses ◽  
532 Nm ◽  
Order Susceptibility

The results of recent studies on the optical limiting properties of BODIPY dyes at 532 and 1064 nm are described and compared. The optical limiting properties of novel 1,7-dimethyl-3,5-di-4-dihydroxyborylstyryl- and 3,5,7-tristyryl-1-methyl-BODIPY dyes were studied in CH2Cl2 and C6H6 and polystyrene thin films using the open aperture Z-scan technique at 532 nm with nanosecond laser pulses to provide an example of how the effective nonlinear absorption coefficient, the third order susceptibility, hyperpolarizability and limiting thresholds can be calculated.

scholarly journals Linear Tuning of Phase-Matching Temperature in LiNbO3:Zr Crystals by MgO Co-Doping

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4155
Author(s):  
Tengfei Kong ◽  
Hongde Liu ◽  
Liyun Xue ◽  
Weiwei Wang ◽  
Shahzad Saeed ◽  
...  
Keyword(s):  
Room Temperature ◽  
Incident Angle ◽  
Phase Matching ◽  
Defect Structures ◽  
Defect Analysis ◽  
High Quality ◽  
Damage Resistance ◽  
Co Doping ◽  
532 Nm ◽  
Co Doped

We grew a series of co-doped LiNbO3 crystals with fixed 1.5 mol % ZrO2 and various MgO concentrations (1.0, 3.0, 4.0, 6.0 mol %), and investigated their optical properties and defect structures. By 3.0 mol % MgO co-doping, the optical damage resistance at 532 nm reached 6.5 × 106 W/cm2, while the phase-matching temperature for doubling 1064 nm was only 29.3 °C—close to room temperature—which was conducive to realizing the 90° phase matching at room temperature by slightly modulating the incident angle of the fundamental beam. Notably, we found that the phase-matching temperature increased linearly with the increase of MgO doping, and this linear dependence helped us to grow the high-quality crystal for room temperature 90° phase matching. Moreover, the defect analysis indicated that the linear tuning of phase-matching temperature might be attributed to Mg Li + + Zr Nb − neutral pairs in crystals.

Covariance analysis of the Coulomb explosion of ammonia induced by intense nanosecond laser at 532 nm

2005 ◽  
Vol 50 (18) ◽  
pp. 2115-2117
Author(s):  
Dongmei Niu ◽  
Haiyang Li ◽  
Feng Liang ◽  
Lihua Wen ◽  
Xiaolin Luo
Keyword(s):  
Coulomb Explosion ◽  
Covariance Analysis ◽  
Nanosecond Laser ◽  
532 Nm

scholarly journals High-quality self-pumped phase conjugation of nanosecond pulses at 532 nm using photorefractive BaTiO_3

1994 ◽  
Vol 19 (19) ◽  
pp. 1508 ◽  
Author(s):  
L. Mager ◽  
M. H. Garrett ◽  
G. Roosen ◽  
D. Rytz ◽  
C. Laquarnoy ◽  
...  
Keyword(s):  
Phase Conjugation ◽  
High Quality ◽  
Nanosecond Pulses ◽  
532 Nm

Third-order nonlinear optical properties of carboxyl group dominant carbon nanodots

2016 ◽  
Vol 4 (36) ◽  
pp. 8490-8495 ◽  
Author(s):  
Liang Bai ◽  
Shi Qiao ◽  
Yu Fang ◽  
Jianguo Tian ◽  
J. Mcleod ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Laser System ◽  
Carbon Nanodots ◽  
Nanosecond Laser ◽  
Carboxyl Group ◽  
Third Order ◽  
Nlo Property ◽  
System P ◽  
532 Nm

We quantitatively investigate the nonlinear optical (NLO) property of carbon nanodots (CNDs, less than 10 nm) by the Z-scan technique using a tunable 532 nm nanosecond laser system.

Nanosecond-laser-induced damage in potassium titanyl phosphate: pure 532 nm pumping and frequency conversion situations

2011 ◽  
Vol 50 (22) ◽  
pp. 4509 ◽  
Author(s):  
Frank R. Wagner ◽  
Anne Hildenbrand ◽  
Jean-Yves Natoli ◽  
Mireille Commandré
Keyword(s):  
Frequency Conversion ◽  
Potassium Titanyl Phosphate ◽  
Nanosecond Laser ◽  
Laser Induced Damage ◽  
532 Nm
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