TY - GEN
T1 - Color-correcting Gradient-index infrared singlet based on silicon and germanium mixing
AU - Brocker, Donovan
AU - Campbell, Sawyer
AU - Werner, Douglas Henry
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/22
Y1 - 2015/10/22
N2 - Gradient-index (GRIN) lenses are predicted by many to have superior performance compared with lens systems using conventional homogeneous material compositions. Namely, the complexity of classic (i.e. homogeneous) multi-lens sequences required for high performance optical systems can be instead manifested into GRIN profile complexity, allowing for refraction throughout the volume of a lens and not just at the hard surface boundaries. As GRIN material technologies continue to evolve, facilitating more practical GRIN lens implementations, the knowledgebase and design tools to optimize GRIN lens systems must be simultaneously built. In this paper, one of the more unknown, yet crucially important, challenges of GRIN lens design is considered: dispersion. Dispersion and its effects on GRIN lenses are considered and a method to minimize its impact on the performance of GRIN lenses is outlined. Finally, a GRIN focusing lens based on the mixing of Germanium (Ge) and Silicon (Si) is proposed and designed to have minimal focal drift.
AB - Gradient-index (GRIN) lenses are predicted by many to have superior performance compared with lens systems using conventional homogeneous material compositions. Namely, the complexity of classic (i.e. homogeneous) multi-lens sequences required for high performance optical systems can be instead manifested into GRIN profile complexity, allowing for refraction throughout the volume of a lens and not just at the hard surface boundaries. As GRIN material technologies continue to evolve, facilitating more practical GRIN lens implementations, the knowledgebase and design tools to optimize GRIN lens systems must be simultaneously built. In this paper, one of the more unknown, yet crucially important, challenges of GRIN lens design is considered: dispersion. Dispersion and its effects on GRIN lenses are considered and a method to minimize its impact on the performance of GRIN lenses is outlined. Finally, a GRIN focusing lens based on the mixing of Germanium (Ge) and Silicon (Si) is proposed and designed to have minimal focal drift.
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U2 - 10.1109/APS.2015.7304781
DO - 10.1109/APS.2015.7304781
M3 - Conference contribution
AN - SCOPUS:84953743982
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 788
EP - 789
BT - 2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Antennas and Propagation Society International Symposium, APS 2015
Y2 - 19 July 2015 through 24 July 2015
ER -