Tunable multichannel optical filter based on silicon photonic band gap materials actuation

2002 ◽  
Vol 81 (22) ◽  
pp. 4112-4114 ◽  
Author(s):  
Yasha Yi ◽  
Peter Bermel ◽  
Kazumi Wada ◽  
Xiaoman Duan ◽  
J. D. Joannopoulos ◽  
...  
Keyword(s):  
Band Gap ◽  
Photonic Band Gap ◽  
Optical Filter ◽  
Silicon Photonic ◽  
Photonic Band Gap Materials ◽  
Photonic Band

3-Dimensional Photonic Crystals at Optical Wavelengths

1998 ◽  
Vol 07 (02) ◽  
pp. 181-200 ◽  
Author(s):  
S. G. Romanov
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Photonic Band Gap ◽  
Stop Band ◽  
High Refractive Index ◽  
3 Dimensional ◽  
Optical Wavelength ◽  
Photonic Band Gap Materials ◽  
Optical Wavelengths ◽  
Photonic Band

Different experimental strategies towards the 3-dimensional photonic crystals operating at optical wavelength are classified. The detailed discussion is devoted to the recent progress in photonic crystals fabricated by template method — the photonic band gap materials on the base of opal. The control of photonic properties of opal-based gratings is achieved through impregnating the opal with high refractive index semiconductors and dielectrics. Experimental study demonstrated the dependence of the stop band behaviour upon the type of impregnation (complete or partial) and showed a way for approaching complete photonic band gap. The photoluminescence from opal- semiconductor gratings revealed suppression of spontaneous emission in the gap region with following enhancement of the emission efficiency at the low-energy edge of the gap.

Tuning of 2-D Silicon Photonic Crystals

2002 ◽  
Vol 722 ◽  
Author(s):  
H. M. van Driel ◽  
S.W. Leonard ◽  
J. Schilling ◽  
R.B. Wehrspohn
Keyword(s):  
Band Gap ◽  
High Frequency ◽  
Optical Band Gap ◽  
Photonic Band Gap ◽  
Macroporous Silicon ◽  
Optically Pumped ◽  
Electron Hole ◽  
Silicon Photonic ◽  
Induced Changes ◽  
Photonic Band

AbstractWe demonstrate two ways in which the optical band-gap of a 2-D macroporous silicon photonic crystal can be tuned. In the first method the temperature dependence of the refractive index of an infiltrated nematic liquid crystal is used to tune the high frequency edge of the photonic band gap by up to 70 nm as the temperature is increased from 35 to 59°C. In a second technique we have optically pumped the silicon backbone using 150 fs, 800 nm pulses, injecting high density electron hole pairs. Through the induced changes to the dielectric constant via the Drude contribution we have observed shifts up to 30 nm of the high frequency edge of a band-gap.

Metallic photonic band-gap materials (MPBG) as angular selective reflector or radome: Application to antenna grating lobe reduction

2000 ◽  
Vol 55 (5-6) ◽  
pp. 207-215
Author(s):  
Gregory Poilasne ◽  
P. Pouliguen ◽  
K. Mahdjoubi ◽  
Laurent Desclos ◽  
Philippe Gélin ◽  
...  
Keyword(s):  
Band Gap ◽  
Photonic Band Gap ◽  
Grating Lobe ◽  
Photonic Band Gap Materials ◽  
Photonic Band

Spontaneous Emission and Nonlinear Effects in Photonic Band Gap Materials

1996 ◽  
pp. 237-248
Author(s):  
Michael D. Tocci ◽  
Mark J. Bloemer ◽  
Michael Scalora ◽  
Charles M. Bowden ◽  
Jonathan P. Dowling
Keyword(s):  
Band Gap ◽  
Spontaneous Emission ◽  
Photonic Band Gap ◽  
Nonlinear Effects ◽  
Photonic Band Gap Materials ◽  
Photonic Band

Accurate theoretical analysis of photonic band-gap materials

1993 ◽  
Vol 48 (11) ◽  
pp. 8434-8437 ◽  
Author(s):  
R. D. Meade ◽  
A. M. Rappe ◽  
K. D. Brommer ◽  
J. D. Joannopoulos ◽  
O. L. Alerhand
Keyword(s):  
Theoretical Analysis ◽  
Band Gap ◽  
Photonic Band Gap ◽  
Photonic Band Gap Materials ◽  
Photonic Band
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