Improved transmission characteristics of moderate refractive index contrast photonic crystal slabs

2002 ◽  
Vol 81 (14) ◽  
pp. 2517-2519 ◽  
Author(s):  
G. Böttger ◽  
C. Liguda ◽  
M. Schmidt ◽  
M. Eich
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Transmission Characteristics ◽  
Refractive Index Contrast ◽  
Photonic Crystal Slabs ◽  
Index Contrast

Photonic Crystal Films with High Refractive Index Contrast

2000 ◽  
Vol 12 (20) ◽  
pp. 1499-1503 ◽  
Author(s):  
M. Müller ◽  
R. Zentel ◽  
T. Maka ◽  
S. G. Romanov ◽  
C. M. Sotomayor Torres
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
High Refractive Index ◽  
Refractive Index Contrast ◽  
Crystal Films ◽  
Index Contrast

scholarly journals Spatial Resolution and Refractive Index Contrast of Resonant Photonic Crystal Surfaces for Biosensing

2015 ◽  
Vol 7 (3) ◽  
pp. 1-10 ◽  
Author(s):  
G. J. Triggs ◽  
M. Fischer ◽  
D. Stellinga ◽  
M. G. Scullion ◽  
G. J. O. Evans ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Spatial Resolution ◽  
Crystal Surfaces ◽  
Refractive Index Contrast ◽  
Index Contrast

scholarly journals Optical Sensitivity of Waveguides Inscribed in Nanoporous Silicate Framework

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 123
Author(s):  
Zhong Lijing ◽  
Roman A. Zakoldaev ◽  
Maksim M. Sergeev ◽  
Andrey B. Petrov ◽  
Vadim P. Veiko ◽  
...  
Keyword(s):  
Refractive Index ◽  
Near Field ◽  
Experimental Studies ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Direct Writing ◽  
Sensor Applications ◽  
Refractive Index Contrast ◽  
Optical Sensitivity ◽  
Index Contrast

Laser direct writing technique in glass is a powerful tool for various waveguides’ fabrication that highly develop the element base for designing photonic devices. We apply this technique to fabricate waveguides in porous glass (PG). Nanoporous optical materials for the inscription can elevate the sensing ability of such waveguides to higher standards. The waveguides were fabricated by a single-scan approach with femtosecond laser pulses in the densification mode, which resulted in the formation of a core and cladding. Experimental studies revealed three types of waveguides and quantified the refractive index contrast (up to Δn = 1.2·10−2) accompanied with ~1.2 dB/cm insertion losses. The waveguides demonstrated the sensitivity to small objects captured by the nanoporous framework. We noticed that the deposited ethanol molecules (3 µL) on the PG surface influence the waveguide optical properties indicating the penetration of the molecule to its cladding. Continuous monitoring of the output near field intensity distribution allowed us to determine the response time (6 s) of the waveguide buried at 400 µm below the glass surface. We found that the minimum distinguishable change of the refractive index contrast is 2 × 10−4. The results obtained pave the way to consider the waveguides inscribed into PG as primary transducers for sensor applications.

Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting

2010 ◽  
Author(s):  
Balpreet Singh Ahluwalia ◽  
Olav Gaute Hellesø ◽  
Ananth Z. Subramanian ◽  
James S. Wilkinson ◽  
Jie Chen ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Refractive Index Contrast ◽  
Integrated Platform ◽  
Index Contrast
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