This study demonstrates a discrimination of endometrial cancer versus (non-cancerous) benign controls based on mid-infrared (MIR) spectroscopy of dried plasma or serum liquid samples. A detailed evaluation was performed of...
This Letter, to the best of our knowledge, reports mid-infrared fiber lasing beyond 5 µm at room temperature for the first time,
C
e
3
+
-doped, chalcogenide glass, step index fiber employed in-band pumping with a 4.15 µm quantum cascade laser. The lasing fiber is was 64 mm long, with a calculated numerical aperture of 0.48 at the lasing wavelengths. The core glass was
G
e
15
A
s
21
G
a
1
S
e
63
atomic % (at. %), doped with 500 parts-per-million-by-weight Ce, with a 9 µm core diameter. The cladding glass was
G
e
21
S
b
10
S
e
69
at. % with a 190 µm outer diameter. As pump power increases continuous wave lasing corresponding to the
2
F
7
/
2
→
2
F
5
/
2
, transition in the
C
e
3
+
ion occurs at 5.14 µm, 5.17 µm, and 5.28 µm.
We present a study that aims to evaluate the cytotoxicity of Ge20Sb10Se70 at% glass optical fibres on 3T3 mouse fibroblast cells. To observe the toxicity of these optical fibres, 3T3 fibroblast proliferation was investigated.
We report on the internal examination of mid-infrared chalcogenide
glasses using near-infrared light to reveal light-scattering defects.
The technique is demonstrated on imperfectly made chalcogenide glass
rods and fiber. This simple, non-destructive technique enables
assessment of the interior of glasses and convenient detection of
regions containing defects hidden due to the glass opacity to visible
light. This method will reveal the presence of unwanted
light-scattering defects including nucleated crystals, dust, striae,
and bubbles. Hence, this method will help to optimize both
chalcogenide glass chemical formulations, against devitrification, and
process design to manufacture glass rods and fiber with minimized
light scattering defects.
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