Infrared LasersLaser OutputsLiquid NitrogenRaman SpectraBandwidthDye LasersFrequency ControlRuby LasersTuningEfficient Stimulated Raman Scattering (SRS) in liquid nitrogen between 15 and 18 μm was obtained. Infrared radiation output was continuously tunable and narrow-band with energies up to 1.7 mJ....
Microneedle fabrication on a metal surface based on laser ablation using twisted light with spin was demonstrated, for the first time. The resulting needle... T Omatsu,K Chujo,K Miyamoto,... - 《Optics Express》 被引量: 103发表: 2010年 Thermal lensing measurements in line-focus end-pumped ...
Here we report a very efficient single amplification stage laser based on traditional chirped pulse amplification capable of producing 4 mJ, near-transform limited 44 fs (<6 cycles), 1 kHz pulses centered at 2.5 μm. The ≈90 GW peak power is the highest value ever reached at this ...
(Such the fractional optical vortex operation is never permitted in a conventional stable laser cavity [2].) However, the pulse energy (<;0.5mJ) of the fractional vortex output is limited by severe diffraction loss in the plane-parallel cavity configuration. Also, the lasing wavelength of the ...
Pulsed laserHigh energyIn the first part of this article we review the challenges associated with erbium鈥搚tterbium doped fibre amplifiers and the design considerations to scale-up the output power and energy using cladding-pumped large-core fibre amplifiers in master-oscillator power-amplifier (...
A high-powered millijoule pulse energy Tm 3+ -doped fiber amplifier seeded with a Q-switched operation of Tm (4 at.-%), Ho (0.4 at.-%):YVO 4 laser is reported. The output characteristics of the amplified laser are studied at the coupled powers of 0.266, 1.24, and 2.65 W. Maximum...
A high-powered millijoule pulse energy Tm 3+ -doped fiber amplifier seeded with a Q-switched operation of Tm (4 at.-%), Ho (0.4 at.-%):YVO 4 laser is reported. The output characteristics of the amplified laser are studied at the coupled powers of 0.266, 1.24, and 2...
The soliton laser [1] and subsequently the additive-pulse-modelocked laser (APM) [2,3] are capable of producing 100-200 fsec pulses routinely with up to 1.5 nJ of energy. However, for some applications, higher pulse energies are needed. In particular, femtosecond continuum generation requires...