Gradient-index optofluidic waveguide in polydimethylsiloxane.
We demonstrate a gradient-index (GRIN) optofluidic waveguide using polydimethylsiloxane cured with a radial variation of temperature. The waveguide wraps the microfluidic channel and the GRIN profile localizes the light around it, making the device suitable for evanescent sensing applications. The fabricated waveguide shows good light confinement, with a propagation loss of 1.47 dB/cm at a wavelength of 632.8 nm.
Mutasem
M
Odeh
Bob
B
Voort
Arslan
A
Anjum
Bruna
B
Paredes
Clara
C
Dimas
Marcus S
MS
Dahlem