Phone: 81 3 5248 4820
Fax: 81 3 5248 0021
CW Fiber Laser
Î Laser for SHG/THG
Î 3-D Printing
Î Micro Processing
Î Graphic Imaging
Î Printing (CtP)
• Wavelength 1064nm
• Polarization Ratio >250: 1
• Rated Power >20W
➲Your Application Here
Fiber Laser KKFL- 20
1.75 1.70 1.65 1. 60 1. 55 1. 50
Flat × 5
4555 Runway St. • Simi Valley, CA 93063
Tel (805) 582-0155 • Fax (805) 582-1623
• Analog bandwidth to 8 GHz.
• FC, SC, and ST receptacles.
• Active diameter from 50 µm to 5 mm.
• Standard and custom ceramic submounts.
• TO-style packages available with flat
AR-coated windows, ball lens and dome lens.
• Standard axial pigtail packages and
miniature ceramic pigtail packages, all
available with low back-reflection fiber.
Imaging / Sensing
nanospheres, and nanowires, have been
successfully used to increase absorption
of laser radiation, as evidenced by the ob-
servation of enhanced x-ray emission (see
references 18-24 in B. Bargsten et al., Sci.
Adv., 3, 1, e1601558 ). Nevertheless,
arrays of high-aspect-ratio aligned nanowires separated by vacant gaps are unique
in allowing volumetric heating by deep
penetration of femtosecond optical laser
pulses of relativistic intensity into near-sol-
In the irradiation process, electrons are
ripped from the surface of the nanowires
by the intense laser field that accelerates
them into the gaps between the wires to
acquire high energy. Electron collisions
with the nanowires heat the material to
extreme temperatures, causing the nanow-
ires to explode, rapidly filling the gaps
with plasma. When the gaps are filled, a
continuous, critical electron density layer
is formed that forbids further coupling of
laser energy into the material.
The use of femtosecond laser pulses of
relativistic intensity allows for very efficient coupling of energy deep into the
nanowire array, heating a large volume
of near solid-density material several mi-
crons in depth to multi-kiloelectronvolt
FIGURE 2. Single-shot x-ray spectra of
nickel (Ni) nanowires irradiated at an intensity
of 5 × 1018 W/cm2 are compared to that from
a flat polished Ni target (with 10X magnified
scale). (Adapted from M. Purvis et al. 4)