1. Soft X-ray Applications Lab, Raja Ramanna Centre for Advanced Technology 1 , Indore 452013, India
2. Homi Bhabha National Institute 2 , Anushakti Nagar, Mumbai 400094, India
3. Optical Coating Lab, Raja Ramanna Centre for Advanced Technology 3 , Indore 452 013, India
4. National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory 4 , P.O. Box 5000, Upton, New York 11973, USA