scholarly journals On-chip second-order spatial derivative of an optical beam by a periodic ridge

2020 ◽  
Vol 28 (18) ◽  
pp. 26481
Author(s):  
Seyed Saleh Mousavi Khaleghi ◽  
Parisa Karimi ◽  
Amin Khavasi
Keyword(s):  
Second Order ◽  
Optical Beam ◽  
Spatial Derivative ◽  
On Chip

A 3.2 ppm/°C Second-Order Temperature Compensated CMOS On-Chip Oscillator Using Voltage Ratio Adjusting Technique

2018 ◽  
Vol 53 (4) ◽  
pp. 1184-1191 ◽  
Author(s):  
Guoqiang Zhang ◽  
Kosuke Yayama ◽  
Akio Katsushima ◽  
Takahiro Miki
Keyword(s):  
Second Order ◽  
Voltage Ratio ◽  
On Chip

scholarly journals Cascaded second-order optical nonlinearities in on-chip micro rings

2017 ◽  
Vol 25 (24) ◽  
pp. 29927 ◽  
Author(s):  
Richard Wolf ◽  
Ingo Breunig ◽  
Hans Zappe ◽  
Karsten Buse
Keyword(s):  
Second Order ◽  
Optical Nonlinearities ◽  
On Chip

scholarly journals Large, Electric-Field Induced Tunable and Reversible χ(2) in PZT Thin Films for on-chip second-order nonlinearities

2021 ◽  
Author(s):  
Gilles F. Feutmba ◽  
Artur Hermans ◽  
John P. George ◽  
Irfan Ansari ◽  
Dries Van Thourhout ◽  
...  
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Second Order ◽  
Pzt Thin Films ◽  
Large Electric Field ◽  
On Chip

scholarly journals Photothermal Optical Beam Steering Using Large Deformation Multi-Layer Thin Film Structures

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 428
Author(s):  
Harris J. Hall ◽  
Sean McDaniel ◽  
Piyush Shah ◽  
David Torres ◽  
Jose Figueroa ◽  
...  
Keyword(s):  
Large Deformation ◽  
Beam Steering ◽  
Incident Light ◽  
Optical Beam ◽  
Directional Control ◽  
Highly Sensitive ◽  
Simulation And Experiment ◽  
On Chip ◽  
Layer Thin Film ◽  
Tilt Response

Photothermal actuation of microstructures remains an active area of research for microsystems that demand electrically isolated, remote, on-chip manipulation. In this study, large-deformation structures constructed from thin films traditional to microsystems were explored through both simulation and experiment as a rudimentary means to both steer and shape an incident light beam through photothermal actuation. A series of unit step infrared laser exposures were applied at increasing power levels to both uniformly symmetric and deliberately asymmetric absorptive structures with the intent of characterizing the photothermal tilt response. The results indicate that a small angle (<4° at ~74 W/cm2) mechanical tilt can be instantiated through central placement of an infrared beam, although directional control appears highly sensitive to initial beam placement. Greater responsivity (up to ~9° mechanical tilt at ~54 W/cm2) and gross directional control was demonstrated with an asymmetrical absorptive design, although this response was accompanied by a large amount (~5–10°) of mechanical tilt burn-in and drift. Rigorous device cycling remains to be explored, but the results suggest that these structures, and those similar in construction, can be further matured to achieve controllable photoactuation suitable for optical beam control or other applications.

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