Distinguishing thermal lens effect from electronic third-order nonlinear self-phase modulation in liquid suspensions of 2D nanomaterials

Nanoscale ◽  
2017 ◽  
Vol 9 (10) ◽  
pp. 3547-3554 ◽  
Author(s):  
Yanan Wang ◽  
Yingjie Tang ◽  
Peihong Cheng ◽  
Xufeng Zhou ◽  
Zhuan Zhu ◽  
...  
Keyword(s):  
Thermal Lens ◽  
Phase Modulation ◽  
Third Order ◽  
Self Phase Modulation ◽  
Lens Effect ◽  
2D Nanomaterials ◽  
Liquid Suspensions ◽  
Thermal Lens Effect

Third-order nonlinear optical properties and thermal lens effect of 5-hydroxyquinoline azo dyes

2022 ◽  
pp. 113763
Author(s):  
Hamid Rashidnejad ◽  
Hamideh Motiei ◽  
Mohammad Ramezanitaghartapeh ◽  
Nader Noroozi Pesyan ◽  
Ahmad Poursattar Marjani ◽  
...  
Keyword(s):  
Optical Properties ◽  
Azo Dyes ◽  
Thermal Lens ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Third Order ◽  
Lens Effect ◽  
Thermal Lens Effect

Optical encryption using phase modulation generated by thermal lens effect

2021 ◽  
Author(s):  
John alexis jaramillo osorio ◽  
Alejandro Velez-Zea ◽  
Humberto Cabrera ◽  
J J Niemela ◽  
John Fredy Barrera-Ramírez ◽  
...  
Keyword(s):  
Thermal Lens ◽  
Phase Modulation ◽  
Single Object ◽  
Target Information ◽  
Optical Encryption ◽  
Excitation Beam ◽  
Lens Effect ◽  
Basic Performance ◽  
Encryption Decryption ◽  
Thermal Lens Effect

Abstract We present the implementation of an experimental optical encryption configuration in the Fresnel domain using the thermal lens effect to modulate the phase of the illumination beam. We corroborate the basic performance of our cryptosystem by performing the encryption-decryption procedure of a single object. Then, we test the tolerance of the proposed scheme to decrypt decryption with keys registered for different modulations of the illumination beam induced by the phase generated due to thermal lens effect. These different phase modulations are obtained by introducing axial displacements of a sample, where the thermal lens effect is induced by an excitation beam. Considering the phase modulation changes in the illumination due to sample displacements, we propose an undercover procedure to further protect the target information using decoy data. The key associated with the target information is obtained when the probe and excitation beams are focused on the same point of the sample, while the decoy object key is registered when the beams are not focused on the same region of the sample. Finally, we analyzed the resistance of the undercover ciphertext to some of the attacks reported in the literature. All experimental results presented in this work demonstrate the basic capabilities, viability, and versatility of our proposals.

Stabilization of the output power of a cw laser by the thermal lens effect

1990 ◽  
Vol 20 (1) ◽  
pp. 52-53
Author(s):  
A I Larkin ◽  
Yu A Mironov ◽  
V M Petropavlovskiĭ
Keyword(s):  
Output Power ◽  
Thermal Lens ◽  
Lens Effect ◽  
Cw Laser ◽  
Thermal Lens Effect

Impact of Radial and Tangential Thermal Lens Effect on Output Characteristics of High-Brightness Lasers

2010 ◽  
Vol 37 (11) ◽  
pp. 2780-2783
Author(s):  
丁欣 Ding Xin ◽  
李雪 Li Xue ◽  
盛泉 Sheng Quan ◽  
李斌 Li Bin ◽  
周睿 Zhou Rui ◽  
...  
Keyword(s):  
Thermal Lens ◽  
High Brightness ◽  
Lens Effect ◽  
Output Characteristics ◽  
Thermal Lens Effect

Theoretical Design of Thresholdtunable Optical Limiters Based on the Thermal Lens Effect of Magnetic Fluids

2012 ◽  
Vol 41 (9) ◽  
pp. 1009-1014
Author(s):  
王昊天 WANG Haotian ◽  
卜胜利 PU Shengli ◽  
王宁 WANG Ning
Keyword(s):  
Thermal Lens ◽  
Magnetic Fluids ◽  
Lens Effect ◽  
Optical Limiters ◽  
Theoretical Design ◽  
Thermal Lens Effect
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