Date: Thu, 11 May 2006 07:04:44 -0700 From: Evelyn Downey To: vnv@astro.caltech.edu Subject: Fwd: RFQ for NGAO Dichroics Parts/Attachments: 1 Shown 60 lines Text (charset: ISO-8859-1) 2 OK 8.9 KB Application ---------------------------------------- Hello Viswa - >From a quick review the only one that we will be unable to quote on is Item #14. We do not have a process for anything less then about 230nm. 12" optics are not a problem. We can actually coat up to about 30" optics. As for all other items we will start the quoting process. I do however have some questions regarding the substrates. Do you have any specific requirements on the RWF or TWF? Is there a thickness specification? Parallelism? etc.... If you do not know at this time we can quote "standard" specifications on the substrates with just a TWF spec....which is the easiest to achieve! The substrate in some of these cases can be more expensive then the actual coatings depending on the spec's required. Best Regards Evelyn Downey Sales/Applications Engineer Barr Associates, Inc ----- Forwarded message from barr@barrassociates.com ----- Date: Thu, 11 May 2006 05:12:32 -0700 From: Sharon Palermo Reply-To: spalermo@barrassociates.com Subject: Fwd: RFQ for NGAO Dichroics To: edowney@barrassociates.com ----- Forwarded message from vnv@astro.caltech.edu ----- Date: Wed, 10 May 2006 21:20:33 -0700 (PDT) From: Viswa Velur Subject: RFQ for NGAO Dichroics To: barr@barrassociates.com Hi, Attached, please find a document with a list of dichroics. I would like to know if all of these are possible to make. I request quotes for all the dichroics on that list. I look forward to hearing from you. Please take a quick look at the attachment to see if any of the optics in the list are impossible to make with current coatings. If any of the coating needs new coating process development, we can decide to allocate money for it or change our system design. Please advice. Thanks. - With best regards, Viswa ------------------------------------------------------------------ Viswa Velur | Phone: 626-395-2650 01 Robinson, M/S 105-24 | Fax: 626-395-2620 CalTech, Pasadena CA -91125 | E-mail: vnv@phobos.caltech.edu