Contact Information

E-mail : nkn[*AT]iitp.ac.in
Personal Webpage :

Phone : +91-612-2552027

Fax :  +91-612-2277383

Research Interest

Optics (Theory & Experiment, Optical Information Processing).

Teaching

at IIT Patna

PH 102: Physics-II (B. Tech. I yr., Theory & Tutorial)

PH 110: Physics Laboratory (B. Tech. I yr, Course Coordinator)
PH 101: Physics - I (B. Tech. I yr., Tutorial)

at IIT Guwahati

PH 101: Physics – I (B. Tech. I yr, Tutorial)
PH 511: Physics Laboratory (M. Sc. III Sem.)
PH 011: Preparatory Physics Laboratory (Course Coordinator)

PH 110: Physics Laboratory (B. Tech. I yr, Course Coordinator)
PH 102: Physics - II (B. Tech. I yr., Tutorial)
 

Publications

1. S. Goyal, N. K. Nishchal, V. K. Beri, and A. K. Gupta, “Wavelet modified maximum average correlation height filter for out-of-plane rotation invariance,” Optik 120 (2009) 62-67.

2. A. Bhagatji, N. K. Nishchal, A. K. Gupta, and B. P. Tyagi, “Extended fractional wavelet joint transform correlator,” Optics Communications 281 (2008) 44-48.

3. R. B. Yadav, N. K. Nishchal, A. K. Gupta, and V. K. Rastogi, “Retrieval and classification of objects using generic Fourier, Legendre moment, and wavelet Zernike moment descriptors and recognition using joint transform correlator,” Optics & Laser Technology 40 (2008) 517-527.

4. A. Aran, N. K. Nishchal, V. K. Beri, and A. K. Gupta, “Log-polar transform-based wavelet-modified maximum average correlation height filter for distortion-invariant target recognition,” Optics & Lasers in Engineering 46 (2008) 34-41.

5. A. Bhagatji, N. K. Nishchal, A. K. Gupta, and B. P. Tyagi, “Wavelet-modified fringe-adjusted joint transform correlator,” Optics & Laser Technology 40 (2008) 99-112.

6. A. Aran, N. K. Nishchal, V. K. Beri, and A. K. Gupta, “Log-polar transform-based wavelet-modified maximum average correlation height filter for distortion invariance in a hybrid digital-optical correlator,” Applied Optics 46 (2007) 7970-7977.

7. R. B. Yadav, N. K. Nishchal, A. K. Gupta, and V. K. Rastogi, “Retrieval and classification of shape-based objects using Fourier, generic Fourier, and wavelet Fourier descriptors technique; A comparative study,” Optics & Lasers in Engineering 45 (2007) 695-708.

8. A. Bhagatji, N. K. Nishchal, V. K. Beri, and A. K. Gupta, “Influence of perturbations in a hybrid digital-optical correlator,” Optics & Lasers in Engineering 45 (2007) 1-11.

9. S. Goyal, N. K. Nishchal, V. K. Beri, and A. K. Gupta, “Wavelet-modified maximum average correlation height filter for rotation invariance that uses chirp encoding in a hybrid digital-optical correlator,” Applied Optics 45 (2006) 4850-4857.

10. N. K. Nishchal, S. Goyal, A. Aran, V. K. Beri, and A. K. Gupta, “Binary differential joint transform correlator based on a ferroelectric liquid crystal electrically addressed spatial light modulator,” Optical Engineering 45 (2006) 026401-10.

11. N. K. Nishchal, J. Joseph, and K. Singh, “Fully phase encryption using digital holography,” Optical Engineering 43 (2004) 2959-2966.

12. N. K. Nishchal, J. Joseph, and K. Singh, “Fully phase-based encryption using fractional order Fourier domain random phase encoding; Error analysis,” Optical Engineering 43 (2004) 2266-2273.

13. N. K. Nishchal, J. Joseph, and K. Singh, “Securing information using fractional Fourier transform in digital holography,” Optics Communications 235 (2004) 253-259.

14. N. K. Nishchal, J. Joseph, and K. Singh, “Fully phase encrypted memory using cascaded extended fractional Fourier transform,” Optics & Lasers in Engineering 42 (2004) 141-151.

15. N. K. Nishchal, J. Joseph, and K. Singh, “Optical phase encryption by phase contrast using electrically addressed spatial light modulator,” Optics Communications 217 (2003) 117-122.

16. N. K. Nishchal, J. Joseph, and K. Singh, “Fully phase encryption using fractional Fourier transform,” Optical Engineering 42 (2003) 1583-1588.

17. N. K. Nishchal, J. Joseph, and K. Singh, “Optical encryption using cascaded extended fractional Fourier transform,” Optical Memory & Neural Networks 12 (2003) 139-145.

18. N. K. Nishchal, G. Unnikrishnan, J. Joseph, and K. Singh, “Optical encryption using localized fractional Fourier transform,” Optical Engineering 42 (2003) 3566-3571.

19. N. K. Nishchal, “Optical image watermarking using fractional Fourier transform,” Jour. Opt. (India - Springer) 38 (2009) 22-28.

20.  R. B. Yadav, N. K. Nishchal, A. K. Gupta and V. K. Rastogi, "Vehicular shape-based object classification using Fourier description technique," Jour. Sc. Indus Res. 68 (2009) 484 - 495.

21. V. K. Beri, N. K. Nishchal, A. K. Gupta, and V. K. Rastogi, “Design parameters of a hybrid correlator,” Indian Journal of Pure & Applied Physics 46 (2008) 844-851.

22. A. Bhagatji, N. K. Nishchal, A. K. Gupta, and B. P. Tyagi, “Fractional order Fourier transform-based fringe-adjusted joint transform correlator,” Indian Journal of Pure & Applied Physics 46 (2008) 176-186.

23. S. Goyal, N. K. Nishchal, V. K. Beri, and A. K. Gupta, “Complex data mapping on a binary ferroelectric liquid crystal electrically addressed spatial light modulator for target recognition,” Indian Journal of Pure & Applied Physics 45 (2007) 647-653.

24. N. K. Nishchal, G. Unnikrishnan, J. Joseph, and K. Singh, “Optical information security using Fourier and fractional Fourier domain techniques,” SPIE’s International Technical Group Newsletter 16.1 (2005) 4.

25. N. K. Nishchal, “Optical techniques for information security,” DRDO Science Spectrum; A Compendium of National Science Day Orations (2005) 125-139.

26. N. K. Nishchal, J. Joseph, and K. Singh, “Data security using optoelectronic techniques,” Physics Teacher 45 (2003) 71-75.

27. N. K. Nishchal, J. Joseph, and K. Singh, “Phase image encryption in double random fractional Fourier domain encoding using phase contrast technique,” Asian Journal of Physics 11 (2002) 47-52.

28. N. K. Nishchal, J. Joseph, and K. Singh, “A multichannel optical correlator,” Asian Journal of Physics 11 (2002) 53-56.

29. G. S. Khan, N. K. Nishchal, J. Joseph, and K. Singh, “Fractional Fourier transform and its applications: A bibliographic review,” Asian Journal of Physics 10 (2001) 251-299.

30. N. K. Nishchal, R. Paul Raj, U. S. Mishra, S. K. Sahu, and R. Lochan, “Electromagnetic field in and around the campus of Jawaharlal Nehru University, New Delhi,” Indian Journal of Biochemistry & Biophysics 36 (1999) 374-378.

SPIE Conference Proceedings

1. A. K. Gupta, N. K. Nishchal, and V. K. Beri, “A hybrid digital-optical correlator for automatic target recognition,” Proc. SPIE 6574 (2007) 657406.

2. A. Bhagatji, N. K. Nishchal, A. K. Gupta, and B. P. Tyagi, “Wavelet-modified fringe-adjusted joint transform correlator,” Proc. SPIE 6405 (2006) 640513.

3. A. K. Gupta, N. K. Nishchal, and V. K. Beri, “Genetic algorithm based composite wavelet matched filter for 0 to 360° out-of-plane rotations for target recognition,” Proc. SPIE 6234 (2006) 623409.

4. N. K. Nishchal, J. Joseph, and K. Singh, “Fully phase encrypted memory using cascaded extended fractional Fourier transform,” Proc. SPIE 5202 (2003) 106-113.

5. K. Singh and N. K. Nishchal, “Fractional Fourier transform; applications in information optics,” Proc. SPIE 4929 (2002) 34-48.

6. K. Singh, G. Unnikrishnan, and N. K. Nishchal, “Photorefractive optical processing for data security,” Proc. SPIE 4803 (2002) 205-219.

Last updated : 20th October, 2009